2026-03-26T16:33:29Z https://yabu.me Ray Lee https://yabu.me/npub1fjf0qmfcex9dzdvu2nzzpp77z2zm67zrmly22jqmga6aqnjdfxaq5xjlf5 https://media.mathstodon.xyz/accounts/avatars/109/246/444/170/614/911/original/90d3408bcd7ce47e.jpeg https://media.mathstodon.xyz/accounts/avatars/109/246/444/170/614/911/original/90d3408bcd7ce47e.jpeg https://yabu.me/nevent1qqsvw28f9h0kfxh8h83syzl476858rgfthw5rg0jc094cpp2agl8vkszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym58n548j In reply to <a href='/nevent1qqsgc4s24dmt6fxf9xg0dsxkktx8dlw0g45mlt3n8rw86gg6yacgnxgh6za8c'>nevent1q…za8c</a><br/>_________________________<br/><br/>Oh to be a fly on the wall when someone said “Sure, we can measure that. I just need to hike the Pyranees, Andes, and the Tibetan highlands.”<br/><br/>I’m also gratified to hear women involved were acknowledged for their work. The 1940s were more civilized than I thought.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub18zuk6xjrxkqls45rrvm8mzezvcx6tacsqq0664v6569dg409m2rsvrxdht" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Tony Vladusich</span> (<span class="italic">npub18zu…xdht</span>)</a></span> 2026-03-04T05:57:07Z https://yabu.me/nevent1qqszxl0yd8k9wv7dk8qleqlq74chcdqrz447puv89d5de4gzp6yjrdgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5950uza In reply to <a href='/nevent1qqspu50szjhzpp3t737vkjpqx30jjtrxnmg0vdq7e8mjm02srp54rhc8l8mlg'>nevent1q…8mlg</a><br/>_________________________<br/><br/>I never knew the social impact the calculation had. In class I was too busy saying “Wait, really?”<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub18zuk6xjrxkqls45rrvm8mzezvcx6tacsqq0664v6569dg409m2rsvrxdht" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Tony Vladusich</span> (<span class="italic">npub18zu…xdht</span>)</a></span> 2026-03-04T02:00:42Z https://yabu.me/nevent1qqsqyt8t4nystuhhykwfczlvvnv0js4a2y5gua03f4wvjqf3ret29xczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5a5jz0h In reply to <a href='/nevent1qqs2kukqsej5ktg593u9sexgn6guwkwcf8yrqusdq842y383t34aktqmn6yug'>nevent1q…6yug</a><br/>_________________________<br/><br/>nope. Blame quantum. The amount of time it takes to emit a bit of energy goes as h / delta Energy, with h being Planck’s constant. (More technically, the amount of time it takes to transition between two energy states.) Nature’s granularity strikes again.<br/><br/>Sorry about your hand. Hopefully you don’t have to type much today. 2026-03-03T20:51:30Z https://yabu.me/nevent1qqs8tdmnefz7y7l4x76hwke5rsjzsjw2xpnv227xmy629h88s6mcdyszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym55m6vdj In reply to <a href='/nevent1qqsda5923tuf8us43dawe4psh2tav3s3g6drpqudjvkcx6rtrplfqhsaeg5g0'>nevent1q…g5g0</a><br/>_________________________<br/><br/>I agree. And I&#39;m pretty sure he&#39;d agree with you, too. I&#39;m doing both you and he a disservice by not sharing the larger context of the conversation. I think his point, which I am expressing poorly, was to try to hold a boundary: Can the evidence be doubted, are there loop-holes in the method or model? etc. He was trying to make me a little more skeptical, which I needed at the time. 2026-02-12T02:16:00Z https://yabu.me/nevent1qqs2ps5vmssmr3c2r0mlv42e99gvk9nmkk0kg33weu63xh9fmqped4gzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5e7dely In reply to <a href='/nevent1qqsryhz5l08wkg4x5wnewya8gknwylrz7x7rk2098d6rktg35cte74c68s3n3'>nevent1q…s3n3</a><br/>_________________________<br/><br/>My GR professor wouldn&#39;t let me use binary pulsars as evidence for gravitational waves in polite conversation, because it wasn&#39;t a direct observation. I replied &#34;But what else _could_ it be?&#34; He smiled, shook his head a little, and wandered off.<br/><br/>Anyway, it is an astonishing engineering triumph indeed. 2026-02-12T01:48:19Z https://yabu.me/nevent1qqsq8apjkd3l4rz4mlr6a24wetxfhxqgqke4euprzqzpu7jfe0g494szypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym56h6823 In reply to <a href='/nevent1qqsqyexj6jghfl7e52upuaala0fepcgvwzcxgxktngzxnws0mcfc53c69ywgq'>nevent1q…ywgq</a><br/>_________________________<br/><br/>Now that I’m not shooting from the hip, I think I like your suggestion of participants better. Otherwise I’d be implying a load of baggage that comes from the actor model. 2026-02-12T01:32:23Z https://yabu.me/nevent1qqsytzlaynvr8nleg9lyd2qq87k7r540agdnzkn7anjgq40jnkyvl2qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5uzg927 In reply to <a href='/nevent1qqsrddg6zj22h9lm24c0sysyq4kw5kl5uhyuphung4kytruu6xfhwqs978acz'>nevent1q…8acz</a><br/>_________________________<br/><br/>actors 2026-02-12T00:24:26Z https://yabu.me/nevent1qqstqevu45mugjev36alqqr3eznqepmegdpl6ke8wj6y5ky8kgxjcgszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5yyxajh RE: <a href="https://scicomm.xyz/@LIGO/116051346507662792">https://scicomm.xyz/@LIGO/116051346507662792</a><br/><br/>Happy 10th anniversary to evidence that space is jiggly!<br/><br/>I’m oversimplifying, of course. It’s actually that spacetime is jiggly. 2026-02-11T16:03:58Z https://yabu.me/nevent1qqs8ky40k5q57azw386dpdfmck5ulu4uc98ma0gt92vcfgpct6m97tgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5n0ky2c In reply to <a href='/nevent1qqs0p26sdpscdsmmj8x0fqeu2p5n998l03a2snr54rn0m9n85haescs6xllg7'>nevent1q…llg7</a><br/>_________________________<br/><br/>Do you mean compared to what came before? Arguably, GR is the simplest possible thing which could work*. In a sense which <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> would be able to explain far better than I.<br/><br/>* Except for maybe the cosmological constant term. 2025-12-02T05:33:32Z https://yabu.me/nevent1qqsygcwgeehcaeudc03uf5yjgwmqe9rjsdv3nw0nd2fugqjklczdm6czypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5fe4wql In reply to <a href='/nevent1qqsz7002k56d70hyuqjtzcnz7njdert5xluuz2y5p7s0ph2eg7rf6pcxhqwcp'>nevent1q…qwcp</a><br/>_________________________<br/><br/>Ah, some of that will be right-sized, some will be out of reach then. But I’ll enjoy following along, at least, for the parts where I lack the tools. Congrats on the paper. 2025-10-16T21:49:39Z https://yabu.me/nevent1qqszkjcshdzvnxyjrzjv42ynrmmqmzx290klzmnevu0gvfwsyvrn45szypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5uyypp9 In reply to <a href='/nevent1qqsdnc0k3fmhu4rftwja4jul55mqag6mpfja56vez0pkl76kkwgtnusft9c0c'>nevent1q…9c0c</a><br/>_________________________<br/><br/>I&#39;ve been looking forward to working through this series over at your blog. Might be a while through. Regardless, thanks for writing a series that&#39;s a nice &#34;right-sized challenge&#34; for my skills. 2025-10-16T16:26:37Z https://yabu.me/nevent1qqs94utf4e8jmszthfkra56kxx59ztwne06t3khwyae7pzh35nstanqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5xq8e8l In reply to <a href='/nevent1qqsftra7usrw982fv2tazpd4095xq5q0x9wt3mn3rdtrm69hxjach8gjcswpa'>nevent1q…swpa</a><br/>_________________________<br/><br/>I always enjoy sharing stories of the humorous foibles of life. Politeness prevents me from sharing any about others, but luckily that still leaves me with plenty of material.<br/><br/>As for Einstein and the balloon, I dunno. I&#39;d guess he would be amused but not be fooled by my cheap parlor trick. After he pinned inertial and gravitational mass together, it becomes difficult for me to think of ways around that. The balloon still has real atoms with real mass, so gravity must respond to the mass&#39;s energy. The accidental relativity of mass in Newton&#39;s equations doesn&#39;t carry over, as far as I can see.<br/><br/>By the way, after reading through a few other replies and poking at a couple of Wikipedia articles, I gather the imaginary part of the mass of various fields should be thought as more of a decay rate of unstable particles. Thus Gravity is excused from having to be extended to respond to the imaginary portion directly.<br/><br/>Keeping in mind my formal studies ended after the Bachelor level, is that a fair statement? Does imaginary mass pop up in any other guises other than a decay? 2025-09-06T23:58:01Z https://yabu.me/nevent1qqsgp7utlaul93ysyp0shlu0ejpxyjuzmvc0repsf8s5zndpdgq407czypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym52lygr5 In reply to <a href='/nevent1qqstt78c9fu49u2f7s46e3tza7umsqvrc2e2s7e3vmgs66uv66633tcd6psux'>nevent1q…psux</a><br/>_________________________<br/><br/>Note to self: Either don&#39;t try to talk Physics at 4am, or ensure you make sign errors in pairs.<br/><br/>My bad. Negative mass hurts my head. 2025-09-05T04:56:33Z https://yabu.me/nevent1qqs0gul7vycv5vlzmwmtr3m06zaw8ah8t3szkg6zmkzwajuk04jqfdgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5yatsu8 In reply to <a href='/nevent1qqsxkvkdza2j6k4jnu3hf70ls5a7sc06n0shg0u8kllc7wtfd8x2psqa7pm4l'>nevent1q…pm4l</a><br/>_________________________<br/><br/>I don’t mean to suggest this has any bearing on the possibility of negative mass neutrinos, btw. Your post just reminded me of this, and it’s fun to think about. 2025-09-04T11:55:48Z https://yabu.me/nevent1qqsxkvkdza2j6k4jnu3hf70ls5a7sc06n0shg0u8kllc7wtfd8x2psqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym57urgvj In reply to <a href='/nevent1qqsx50ndhl6jge6xnhwlfq8v3q5jyk9ye4gg369gufvuf0kuw48wc9c0vsmdl'>nevent1q…smdl</a><br/>_________________________<br/><br/>One time I was driving with a bunch of helium balloons in the passenger seat to my right. I took a left-hand turn and was surprised when I got attacked by a swarm of party balloons, seemingly accelerating into the turn. It took me a while to realize that all the air heavier than the helium was sloshing to the right, pushing the balloons out of the way and into my head.<br/><br/>There’s a cute paper* that models this by exploiting an accidental symmetry of Newton’s laws. If we arbitrarily consider the air in the car to have zero mass, then the helium balloons must have negative mass, and the dynamics are simpler to model. For example, gravity’s F=mg with negative mass immediately shows the balloons feel a force upward. But it’s just a conceptual simplification. The results are, of course, the same as if we used the actual masses of air and helium everywhere.<br/><br/>As Relativity and QM bring more constraints on mass than Newton has, I don’t think the model carries over to neutrinos. (Like, what would a negative wavelength even mean?) But for balloons, at least, it’s fun to think about. And your post reminded me of it. <br/><br/>Anyway, if the paper had been written a few years earlier, I would have been less surprised. And put the balloons in the back seat.<br/><br/>* <a href="https://pubs.aip.org/aapt/ajp/article/82/10/997/1039402/The-concept-of-negative-mass-and-its-application">https://pubs.aip.org/aapt/ajp/article/82/10/997/1039402/The-concept-of-negative-mass-and-its-application</a> 2025-09-04T11:30:02Z https://yabu.me/nevent1qqsq89k77c09z4w4qrhv8s5rx43phw37sxrwh7d7j6z8vfdcuzfcvugzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5p7fa8m In reply to <a href='/nevent1qqsxk2kfqstvy4l9ug8przpupptvp68plxefpj6e0cz49d3c8ul68gc5kprwz'>nevent1q…prwz</a><br/>_________________________<br/><br/>It certainly is one of the pleasures. And one of the ways I can continue to stretch my skills. But yes, mostly at this point I’d like them to be done, one way or another. I spent a little time this weekend putting boundaries around two of them. One is as done as it needs to be; it taught me what it can. Another might be complete enough, after some callouts of gaps, and some work to exercise the machinery. That may only take a hundred hours. The third… I may just recategorize as an art project.<br/><br/>Regardless, it’ll be nice to get the brain space back, so I can pick up some new hobbies. 2025-09-01T04:03:35Z https://yabu.me/nevent1qqsqk2jffgx88yf20kgxu06nnq0afmhp7x6y5xwdf2j658y929zuckgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5u002vs TFW you have a bit of free time so dust off a hobby project, only to remember it’s actually three hobby projects in a trench coat. 2025-08-30T20:21:59Z https://yabu.me/nevent1qqs2jr5t9dp5dyaug4nedq58xyv8ueedw8jlrh9q4gd6svp5lnnvn6qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5d7m5gz In reply to <a href='/nevent1qqsxzugd4lhgva8dljrrekwvczzwgzqa67kn67h0mu8cgkmwhmdu94cgfdp05'>nevent1q…dp05</a><br/>_________________________<br/><br/>When I got to the part where we (humans) installed a gigawatt of solar power generation every 8 hours in May I had to smile. As so many social ills are tied to fossil fuels, it’s heart warming to see market forces will help defund petrofascism. 2025-07-13T10:23:11Z https://yabu.me/nevent1qqsygzqmeasw8ha27xyq86wdsllmeperh7palpfrv46e6zyncds9usgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5krqsdc In reply to <a href='/nevent1qqstrhlufztv9s695m3epw4mjv75sv54qxv9j5kfl4cmvlt7f7rre7grxlxch'>nevent1q…lxch</a><br/>_________________________<br/><br/>Agreed. A favorite lesson I try to remember is about leaving people, or things, better than I found them. Not that I’m any good at it, mind you. But I do think, metaphorically speaking, every step we take can cause flowers to bloom. 2025-07-11T05:10:03Z https://yabu.me/nevent1qqswyp25h2uruddgtcdfjh72cpdnyqccq48d3qpvc06en3k6e4k7qpgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5tqeu3c In reply to <a href='/nevent1qqswr58jagh2cldm8ex8ay2m6sdvl94ehxxhygqdfv9ugmgcm23v57gj7xp0u'>nevent1q…xp0u</a><br/>_________________________<br/><br/>We are a surprisingly narcissistic species.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1p7uy38gmmfgap7wr9hqq3njg0zc5p4s5vykthq7k9sezfp2w220s3fkglz" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>ma𝕏pool</span> (<span class="italic">npub1p7u…kglz</span>)</a></span> 2025-07-10T10:46:41Z https://yabu.me/nevent1qqsdnpgnud54eqpqfyts25x8cpgkehcpdw7tcp08m3wvhre5agy0qnczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5jpxvzm In reply to <a href='/nevent1qqsvg0vgq4m56lfnqtkaj6wtcnh247rj4zgh2f3au603py6574gg5qgg84yg9'>nevent1q…4yg9</a><br/>_________________________<br/><br/>I recently added “After the Spike: Population, Progress, and the Case for People” to my reading queue but probably won’t be getting to it any time soon. See linked post for a short endorsement:<br/><br/><a href="https://fed.brid.gy/r/https://bsky.app/profile/did:plc:o72ypk5c474zqklkukaphuy3/post/3ltho2o57nk22">https://fed.brid.gy/r/https://bsky.app/profile/did:plc:o72ypk5c474zqklkukaphuy3/post/3ltho2o57nk22</a> <br/><br/>I tend to think we’re way overpopulated with humans, especially given all our coming challenges with climate change. I figure reading a contrary point of view will be good for me.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1p7uy38gmmfgap7wr9hqq3njg0zc5p4s5vykthq7k9sezfp2w220s3fkglz" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>ma𝕏pool</span> (<span class="italic">npub1p7u…kglz</span>)</a></span> 2025-07-10T10:35:53Z https://yabu.me/nevent1qqsv5h8c9sm9tru4wwnud26nntyg9xa9yzq6y5t4e8h9k73g8ekhgzgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5kykd2r In reply to <a href='/nevent1qqs0kw8jr5efa5entf2lthz6xphv8nmqqenl3an2prxkkkvwyr4tgvqver75q'>nevent1q…r75q</a><br/>_________________________<br/><br/>Are the schematics online somewhere as well? 2025-06-02T23:22:16Z https://yabu.me/nevent1qqsz70lcv3g5jjl8uzv0kh9jj2qytl3zdfjful66gtv3emr6lm8fn9qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym57cy2x3 In reply to <a href='/nevent1qqsyvqeuzcp5z3l556qchq57tykc3fezvltkgl7zs5hn22a4nljdc6shyhwsx'>nevent1q…hwsx</a><br/>_________________________<br/><br/>I’d be happy to write all the software support, as long as I can waggle all the right pins ftom the cpu. 2025-06-01T01:51:25Z https://yabu.me/nevent1qqsd2gtg5uvlrhx0c9gfwpc0z08p5zw32yx75svpkgxkznp7f7k986szypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5k09m57 In reply to <a href='/nevent1qqs2xjm8vt2xemxe5ph569j96h58dwh2d2kakwfadehqydzw2nkxpsqk6alz9'>nevent1q…alz9</a><br/>_________________________<br/><br/>If you respin the board I’d request a method to program the FPGA without external hardware. I’m used to just loading up new bitstreams on demand, y’know? 2025-05-31T22:03:57Z https://yabu.me/nevent1qqsfw9v53snuspc4t8zrexyej2c4gycgrfjgpmmwr6mzgphge97chzczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5d98tq9 In reply to <a href='/nevent1qqs800vagkd03zkhd5uv3k4nsljj2rkmhqtptf3ex8f3w5daahddspg4tmyxc'>nevent1q…myxc</a><br/>_________________________<br/><br/>Yeah, that seems possible too. So what are all the things which could be going on here?<br/><br/>Thinking out loud, at the interface we have:<br/>- net positivity on the upswing side, as you point out<br/>- differing net velocities of the droplet&#39;s sides w/r/t the electron rain<br/>- viscous drag at the boundary with the oil<br/><br/>Outside the interface, the oil feels a field from the static charge on the disk in motion, like a current loop. So there&#39;s an induced magnetic field perpendicular to the rotation, which then let&#39;s us include the Lorentz force on the electron rain near the boundary.<br/><br/>...that&#39;s all I&#39;m coming up with pre-coffee. I&#39;ll go poke at references later. Thanks for the puzzle 🙂 2025-05-14T14:53:53Z https://yabu.me/nevent1qqsqfp4wg6349eu3p9gvgdv0v7sknhllmcktr56y9dgw53vz3ksv42qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5dw3v9q In reply to <a href='/nevent1qqsygqku56x6mc4seeavyz8yjavntshg7adfwlfnfywh805y5vduzksdng28s'>nevent1q…g28s</a><br/>_________________________<br/><br/>I spent a few minutes trying to come up with fancy reasons involving the rotating sphere being a dipole and the induced field somehow causing electrons to prefer to attach to the downward moving side. I failed.<br/><br/>But I think it might be simpler than that. The side moving upward into the electron rain has a higher net velocity with respect to an electron, compared to the side moving downward. It’s going to be harder to stick to something moving faster. The fast side is more likely to kick it away. <br/><br/>The side moving with less net speed is less likely to impart kinetic energy that’s higher than the binding potential energy, which increases the chance for the electron to stick.<br/><br/>Or so I think at the moment. I reserve the right to change my mind and decide this effect is too small to matter in the light of the morning, after a cup of coffee. 2025-05-14T05:06:32Z https://yabu.me/nevent1qqsznm3rn5qxdrv3llazewhfmys8ffyzk7d225x6072ele5425adpzszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym557p59g In reply to <a href='/nevent1qqs9k3lavsvrfxtqps4d4yqpwcxajzddgtevtswp4yt656as5758nes2ntm9y'>nevent1q…tm9y</a><br/>_________________________<br/><br/>contemplating your inbox gives me a mild bit of anxiety. Perhaps we can ask an LLM to apply your crackpot index scorecard to the emails and respond to them for you. 2025-05-04T07:33:15Z https://yabu.me/nevent1qqs83x2j8c273nhk3e9lpgr776vsy0pprm98fuafhdwcy2fhufm930szypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5k47cdw In reply to <a href='/nevent1qqs98ug24ktrkgly660090svtue4x6fsxjj9njcj4g802c84t3kzadg2esuw9'>nevent1q…suw9</a><br/>_________________________<br/><br/>Given the Hamiltonian in QM pushes the state through time, and the Lagrangian is also an energy (therefore, in QM at least, should also evolve something through time, I think?), can we consider the Lagrangian being the evolution of the state function in some lower-energy view? Like maybe the particle&#39;s rest frame, rather than something fixed and more global?<br/><br/>I never was able to get a feel for the action in classical mechanics, other than it was formally true and made solving a lot of wacky problems way easier. So thanks for the pointer to the Hamilton-Jacobi equation. I like that Schrödinger&#39;s equation can sorta be viewed as the diffusion equation with a phase tossed in, so it&#39;s interesting and surprising that there&#39;s an analogue in classical mechanics. (Maybe I was absent from class that day.)<br/><br/> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1x78ms56a50yyrl0t6ztxuksk70fp6n5c3wf9u3cl9k8a7g696t5s9nxn0m" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Dan Piponi</span> (<span class="italic">npub1x78…xn0m</span>)</a></span> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1glgxnwfzwxpvj3l6d96vxttum7rkfav3dmcwdkyqz9eqkt83mdfsaxtqzy" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Bartosz Milewski</span> (<span class="italic">npub1glg…tqzy</span>)</a></span> 2025-05-03T23:03:24Z https://yabu.me/nevent1qqspkcfh6zrznvjncgpruecs7l8u65mqy9wzexmk4htdhc7xq6v23cszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5fmxy7d In reply to <a href='/nevent1qqs0vy28recvvc4nj0mlsesergwpqg5qy9h5hc50x6k74feldntquzg8dcdvm'>nevent1q…cdvm</a><br/>_________________________<br/><br/>I regret that I pulled the ripcord on my mathematics education before getting a grounding in all the modern basics. In hopes of getting corrected by you or one of our mutuals, I will display my ignorance.<br/><br/>In software we have this idea of defining how operators act before using them. Equality can be defined a lot of different ways, y&#39;know? One can define in code what the equal sign should mean, depending on the arguments provided -- its context.<br/><br/>Does this overlap with what Noether is saying here? Or is she pointing somewhere else? 2025-04-29T03:51:20Z https://yabu.me/nevent1qqs8f7nuv48m3xp2zvjp0a693qnpdx78tzvhxsce7he37t9xx6cn52qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5wk845j In reply to <a href='/nevent1qqsv0uxwakrhmnyu52qlqnr7m6ctyqtqg0k99ltkdskuarmdz8amhqct5qn5q'>nevent1q…qn5q</a><br/>_________________________<br/><br/>I&#39;m glad the first few pages of that were history. That way, &lt;grin&gt;, I can say I made it through the first few pages of that.<br/><br/>His optimism that the path would be fruitful is interesting. Though if discovering deeper truths lies down that path I will content myself being an armchair observer and admiring the work from a distance.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1vlchukd4yknuculh52a5xzq98k4fcndnp4ptnl9jx7gr6j5nqsls06mzqq" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>DougMerritt (log😅 = 💧log😄)</span> (<span class="italic">npub1vlc…mzqq</span>)</a></span> 2025-04-05T21:28:59Z https://yabu.me/nevent1qqs86hdh2ah0dneqlr42hy0pwxkp8hdq5tj68xcl46c53t035xvw9uszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5jgpl66 In reply to <a href='/nevent1qqspwng25e8dcy5xavy640q0gu5jdcxjn2ajvzfrwln4uhagpzhlnqsguaus5'>nevent1q…aus5</a><br/>_________________________<br/><br/>If you’d written it you would have chosen something other than a running constant for the gag 😉 <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1vlchukd4yknuculh52a5xzq98k4fcndnp4ptnl9jx7gr6j5nqsls06mzqq" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>DougMerritt (log😅 = 💧log😄)</span> (<span class="italic">npub1vlc…mzqq</span>)</a></span> 2025-04-03T01:44:10Z https://yabu.me/nevent1qqswxn9uj8r3rtw2qk8df5nfhhgc86d68swlueg7vp2akfhf37ukzvqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym52932wv In reply to <a href='/nevent1qqs26zcn5kum6kyyyfkugfage64ensqcl76jz2s0y9xkvya8c23j2qq952hjr'>nevent1q…2hjr</a><br/>_________________________<br/><br/>As you mention, due to the timing I’ve only seen snow coming southbound. I’ve also done the drive a few times and yeah, a roomette to sleep in is much more civilized. Regardless, I loved learning a bit of both Portland and Seattle. Here’s hoping you two enjoy exploring them if you go. <br/><br/>Given you two lived overseas for a while I thought her Doctorate was in something Chinese related. Are her studies of Navajo weaving personal, or professional? (I’m just curious.) 2025-03-25T06:22:46Z https://yabu.me/nevent1qqsvsahz6muqax4qg6duhegxgyzlwzlevtt3t9gfdcr7xyh3yj8r4lgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5k50s7l In reply to <a href='/nevent1qqsgq3dzqfk785xndu3jx9sgnnr8yjvhxr4q37h369s2hp9czvds9kc369gv2'>nevent1q…9gv2</a><br/>_________________________<br/><br/>I’ve taken the coast starlight leg from here (San Luis Obispo) north to Seattle and back a few times. In winter there’s some lovely snowy landscapes in Oregon worth admiring. Sometime I want to take the southern route to admire all the ocean views you can’t see any other way. Trains are great. 2025-03-24T04:21:41Z https://yabu.me/nevent1qqsdq0mhyfycfmtl57h9fzt7lcdlqgc52k4nws2wcp2sfv7mp8gcgaszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5ve9kxp In reply to <a href='/nevent1qqsp9wxf22udgyuh0zc5dtzry8jzwpuu9xtz5w0ylw4zpnsq0kfvlmsmua6lr'>nevent1q…a6lr</a><br/>_________________________<br/><br/>I heard the train pass through town today. Had I known you were on it I would have given a cheery wave in that direction. Have fun at your mathematical shindig :-) 2025-03-24T04:08:42Z https://yabu.me/nevent1qqsqhtmnjqpru60wkyarkvf4fglt2fp0t6evjeprjp4n8xarhuza65gzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5z2l0rx In reply to <a href='/nevent1qqsv457raqv6erem5mxhkyqzsdfkgk9kwj3rg9wvt5kqv0ar2ku6dfqmmpgz8'>nevent1q…pgz8</a><br/>_________________________<br/><br/>I don’t remember if I ever caught them leaving the water running, but that doesn’t surprise me. Water wasn’t billed, and they had no cultural education or care around conservation topics. Water was centrally heated in the two regions I was in. Come springtime the cities turned the hot water off to save money. That’s when we learned it was hard to get soap to lather with ice cold water. We picked up a couple of immersion heaters and made a bath kit we passed around for the last couple months we were there.<br/><br/>I sometimes think I should go back someday and see what’s changed. 2025-02-07T04:27:49Z https://yabu.me/nevent1qqst5xkkus9hynjgp8afmdcsc0mc7lxlg8jwwazqvhw0rct9znmxsuqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5ytgszr In reply to <a href='/nevent1qqsq0xud0w5337pmjujp9fajpr2zdx24hagg87sqkrlh2dn3tx642ag3v6c52'>nevent1q…6c52</a><br/>_________________________<br/><br/>Oh man, that photo.<br/><br/>Kazakhstan was multiple kinds of interesting. After the breakup of the Soviet Union, Kazakhstan was one of the last countries to switch to their own currency. It was beautiful stuff -- gold and silver filigree running through the paper, with pictures of poets and philosophers in bright colors. Unfortunately it cost more to print than it was worth. And they didn&#39;t have the technology to print it, so they were relying on another country in Europe somewhere to handle that for them.<br/><br/>Like Russia back then, KZ was a totally cash based economy. So to switch the currency, officials went door to door, said &#34;I&#39;m from the government, give me your money,&#34; (effectively), and people were granted official IOUs that could be redeemed for cash once the new stuff was finished.<br/><br/>Of course, being a new country and all, they couldn&#39;t actually pay for the printing. So the group handling that for them stopped printing the cash until KZ paid their bills.<br/><br/>As it was a cash based economy and they had no cash, everything ground to a halt. Factories couldn&#39;t pay workers. They reverted to barter.<br/><br/>A company down in Santa Maria where I was living at the time was selling mining equipment to KZ. They stopped getting paid as well, so once the whole story came out, they said &#34;You know what you need? A debit card system.&#34;<br/><br/>I and a handful of others went there to build a system for them. We set it up in a few key factory towns, and trained them on the system for deploying it more widely. Which means I ended up seeing the inside of a lot of banks.<br/><br/>I have a bunch of stories which I should probably write up some time. But for now, a picture of my debit card I had with our system over there.<br/> <img src="https://media.mathstodon.xyz/media_attachments/files/113/960/374/275/904/198/original/93f3199fdc550aa6.png"> <br/> 2025-02-07T03:11:55Z https://yabu.me/nevent1qqswupdj3sv9zdv8ckkexuyhg7vl6d8txvkret3q7jccgnczmfhg9lgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5zznanu In reply to <a href='/nevent1qqsts2hmwfj56lscyxprxt8leefwhwjflyjzuheyw4983eeg7z608cccm85px'>nevent1q…85px</a><br/>_________________________<br/><br/>I lived and worked in Kazakhstan for 7 months back in November of &#39;93 through mid &#39;94. (I took a leave of absence from my undergrad program to do it.)<br/><br/>One of our translators, Olga, wistfully spoke of how her family used to vacation along the Aral Sea when she was a child in the early &#39;80s, but it had changed so much by &#39;94 they never went back.<br/><br/>This is good news. I&#39;m glad the current government is doing a bit of caretaking to help restore what was lost. 2025-02-05T19:35:38Z https://yabu.me/nevent1qqsgj69jj0d84vp7xwx7vrlfn2kv6h4wz6krh4r96jd6dw9xggwn25qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5x5h7cn In reply to <a href='/nevent1qqs03nemz704gud80lrdnuppfanfw5wl4w946jj23sf50qjmcmf67aqutdez4'>nevent1q…dez4</a><br/>_________________________<br/><br/>Agreed. Picking one example a day and ignoring the rest is something easier to crowdsource. And likely easier on everyone so that we all don’t have to track all the chaos. A few minutes online today gave me another example. 2025-01-30T03:36:25Z https://yabu.me/nevent1qqswv9xevhhy5pjkasrapuanhehfhwktljtchuzmu9m02fgam408ysczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5qhe3hk In reply to <a href='/nevent1qqsg3yfg3v9h2t6ehnrgndje54rq83ly6me0yea5nftd92zhyrtnvesjy46vv'>nevent1q…46vv</a><br/>_________________________<br/><br/>I liked this from a former Obama speechwriter: <a href="https://contrarian.substack.com/p/how-to-drink-from-a-firehose">https://contrarian.substack.com/p/how-to-drink-from-a-firehose</a><br/><br/>It’s on effective communication when talking with people who aren’t keeping up with everything, or think that Trump doing lots of terrible things makes him strong. 2025-01-29T16:40:52Z https://yabu.me/nevent1qqs8zdt77uf794fs2drj8srz9g8vml0xcpcr5n90ftlceg0y65eja2gzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5w2829q In reply to <a href='/nevent1qqs84rzwmjmzxa9vnj7l2a2p7ldpkys742cmevng250kujkpeg7ec9gg8l47z'>nevent1q…l47z</a><br/>_________________________<br/><br/>As a guess I suspect the image has been gamma corrected. You could try undoing that first. <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1x78ms56a50yyrl0t6ztxuksk70fp6n5c3wf9u3cl9k8a7g696t5s9nxn0m" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Dan Piponi</span> (<span class="italic">npub1x78…xn0m</span>)</a></span> 2025-01-28T00:58:21Z https://yabu.me/nevent1qqsttmjvejg77k0kua9nphhu7ge98mhe02uqs04kxh5j86hxk2drhugzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5wdmfdl In reply to <a href='/nevent1qqsv559dlvprx2u4vcq6pfxjg5f67jndv5ffdk9qxkh4x6ze67yn49c0h2q7s'>nevent1q…2q7s</a><br/>_________________________<br/><br/>And a happy 1⁰+2⁰+3⁰+⋯+2025⁰ to you, too! 2025-01-04T23:06:37Z https://yabu.me/nevent1qqswjml3p5shmkplxydgutzqjdakqddvr9894jfd3ap85as5lj45wkgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5wg9n8m In reply to <a href='/nevent1qqsgyu6u3ac8a4gv9h6d3hwrr3mj3z9zuwu8tnfdx0rsldlt0xgc4ws98yc0a'>nevent1q…yc0a</a><br/>_________________________<br/><br/>Perhaps for the Third Coming we could try narrowing the gyre instead 2024-12-03T04:44:51Z https://yabu.me/nevent1qqsv5p2k54wnpvcj0ryqnvegujnedgsukku8r93ja4dryz8aujkj47qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5k4anh3 More evidence space is jiggly!<br/><br/>Pulsars are incredibly precise time keepers. They’re as heavy as stars and spinning, so changing their rotation rate isn’t something that happens quickly, unless something cosmic intervenes.<br/><br/>If they do change their periods temporarily, that’s evidence for gravitational waves rattling around our cosmos, stretching or shortening the signals we receive from them. If you watch enough pulsars for long enough, we can turn our entire galaxy into one big gravitational wave detector!<br/><br/>Which, naturally, people have done. The MeerKAT Pulsar Timing Array team has announced evidence for this “Gravitational Wave Background”. This supports results from other teams announced last year.<br/><br/>Article by <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub169c0zgzngdutxp8d0zz47k3fvqrgrx4wqx3jxg5zhdkl5q3rs98qn3jap3" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>CosmicRami</span> (<span class="italic">npub169c…jap3</span>)</a></span> at the link.<br/><br/><a href="https://www.spaceaustralia.com/feature/mpta-finds-evidence-gravitational-wave-background">https://www.spaceaustralia.com/feature/mpta-finds-evidence-gravitational-wave-background</a><br/> <img src="https://media.mathstodon.xyz/media_attachments/files/113/586/071/629/458/313/original/596d29a64c54ed38.jpeg"> <br/> 2024-12-03T00:31:58Z https://yabu.me/nevent1qqsqk30d2c9zklgvuzm3r7dygt55592h5ntwtgj2w0q7a8yrn7rjmrgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5gpspy3 In reply to <a href='/nevent1qqsf6g6ndp7yx29yanfm4t3g2lzdavfrcltty2pdq32re5nt7x464vc523vg8'>nevent1q…3vg8</a><br/>_________________________<br/><br/>I think I have 30TB lying around my house. As storage has gotten much cheaper over the past eight years, distributing copies now seems practical.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1rjk4mmcsqcyh3xyk5aeq5e3pusuv60d8u2dsjt78wrmy8xhn00us0wslfm" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>smxi</span> (<span class="italic">npub1rjk…slfm</span>)</a></span> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> 2024-11-27T09:08:55Z https://yabu.me/nevent1qqsfpkukjq4c76acrlsfzt8v2hspfe8xs8dgjpr99kgm45quuph2tkgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5njs6u8 In reply to <a href='/nevent1qqsgvk3rvztg96w4zqhg0g46zcqdvq4l55s8llyqv7mjn95y4j2r46g02zlfs'>nevent1q…zlfs</a><br/>_________________________<br/><br/>Your personal clock is only a tiny bit redshifted from the things closer to the boundary. In your personal coordinate system, and theirs, things are happily passing through the boundary.<br/><br/>Which is to say, I thought this is merely a coordinate singularity, no?<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1hnphh99kmukqa3qq2axyw9jweek98rchfzchfnjqua7xr79x4xjs5z26ht" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Nick has moved to Mathstodon</span> (<span class="italic">npub1hnp…26ht</span>)</a></span> [@j_bertolotti](<a href="https://mathstodon.xyz/@j_bertolotti">https://mathstodon.xyz/@j_bertolotti</a> ) 2024-11-23T02:38:50Z https://yabu.me/nevent1qqsvyk6yxj3uqxgqk6hx5p0dfchm8ngnkp96cjvhy5uk2qcr47g84jczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5papumf In reply to <a href='/nevent1qqsv7kxxlp4v3k0lg57ej9f5sxnmhdpcvju05390tzdlh4k4xnm6y0cggz48h'>nevent1q…z48h</a><br/>_________________________<br/><br/>Perhaps for the best. Given the lighter gravity I&#39;d bounce off a wave and get bored waiting to come back down again. It&#39;d be easier on my knees, though.<br/><br/>I suppose it&#39;s hard to make waves when you&#39;re tidally locked to Saturn and have a ~two-week orbit. Per the article, storms seem like an option for creating waves for weathering, but who wants to surf when it&#39;s stormy out? 2024-11-08T01:15:06Z https://yabu.me/nevent1qqsyd5p4jdmp0h2f2ysl98akmufwmqkhq9t7y9lvd78409zffhszvlgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym56mkrm5 In reply to <a href='/nevent1qqs8kkp3gzta9uhjxcje4j45w0jfupnjqplye0za65gneyf2zmfdzhsa6mtl9'>nevent1q…mtl9</a><br/>_________________________<br/><br/>Maybe I&#39;ll look into getting some beachfront property on Titan or Europa to weather the changes. 2024-11-07T17:17:30Z https://yabu.me/nevent1qqsy33zklx8ureyele5y053ukjhhx66gx6wntm4uryc7r2fg5v5c3xqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5xj6z8f In reply to <a href='/nevent1qqsygu4dtfxufml7sxjxsdpp386a3u3lsam0yl4cav4xugcu27mmm2sllna9f'>nevent1q…na9f</a><br/>_________________________<br/><br/>Thanks for posting it here, too. It&#39;s always nice to see some forward progress. 2024-11-01T06:15:09Z https://yabu.me/nevent1qqs0kdjp72n98dmz2kjgx575hjze28xs0xjdazhk7n6ft8vru4yegcszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym50ltlh6 In reply to <a href='/nevent1qqsw5xerahnjqwswj6xl6dwm0rq57c2y85lfnw7d9lmszcv6zs24tcs9hamgp'>nevent1q…amgp</a><br/>_________________________<br/><br/>It made the news here in San Luis Obispo which is, admittedly, a low bar. Regardless, I was quite happy to see it. <br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> 2024-11-01T00:13:06Z https://yabu.me/nevent1qqsdqmeqc6mxq850zxjyae9lfkxppmlet4f4lck6r4zqamc7ac388aqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5zuwxf8 In reply to <a href='/nevent1qqszep6saax752tfmwsuer28cdvnpxtup8hxvn0pncmtvdlvv3pgjdce2jl8l'>nevent1q…jl8l</a><br/>_________________________<br/><br/>Thanks for the walkthrough! His example helped me understand my mistake. I was assuming folds were only at the base of each individual triangle. I have a better chance at visualizing it now. Maybe 😅<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1fayw49zkgcklpwmvdsplpmxgdd3xm4vdkg45vgf9ff4nzxgvr42s00s7kh" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Gerard Westendorp</span> (<span class="italic">npub1fay…s7kh</span>)</a></span> 2024-10-26T22:14:03Z https://yabu.me/nevent1qqsvjwx2cjev2kh8mmzklu9y8phhz0j99l2tflq7u4nn0u8zq60ql3szypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym56ksqeg In reply to <a href='/nevent1qqs9x6f533mkhxu64wmdfgrzgnj0x9k8t8lgt84g2pgxteqxu2ey2rcuxu9nj'>nevent1q…u9nj</a><br/>_________________________<br/><br/>I enjoyed that essay, thanks for the link!<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1vlchukd4yknuculh52a5xzq98k4fcndnp4ptnl9jx7gr6j5nqsls06mzqq" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>DougMerritt (log😅 = 💧log😄)</span> (<span class="italic">npub1vlc…mzqq</span>)</a></span> 2024-10-26T15:46:52Z https://yabu.me/nevent1qqsrqklva9hm75et9vl7rmm05cj6jgjjmtwqk60nsfy4q2t0sjn0jnszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym53cy7ma In reply to <a href='/nevent1qqs0u0vqkz4j3cj5qzkkwva7u6mc4dzsld66tyrv2dydlzczz26ywvgpeh4k4'>nevent1q…h4k4</a><br/>_________________________<br/><br/>I thought I was good at visualizing things but I’m struggling with this one. If we label the external vertices clockwise, starting with 1 for the point at the 12 o’clock position, then I don’t see how it and vertex 3 will ever meet. Vertex 3 seems too short?<br/><br/>Is there perhaps a red line missing at the base of the shape formed by vertices 2, 3, and 4? 2024-10-25T19:30:42Z https://yabu.me/nevent1qqsxleqgyx5negw9f8qgf73pa35g08n7l2w5w4226wj9lnata6pfy2gzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5z0acmf In reply to <a href='/nevent1qqsghxnl2f9fjw5c2g8l93csyvymj3sucgeesnz6v3a99hctjd5dtns0f6tmq'>nevent1q…6tmq</a><br/>_________________________<br/><br/>To your point, the &#34;god of the gaps&#34; has been a source of motivated reasoning for at least a century if not much longer. Even Newton believed our solar system&#39;s structure was due to divine design.<br/><br/>Anywhere science is still fuzzy leaves room for a god, as some argue: <a href="https://en.wikipedia.org/wiki/God_of_the_gaps">https://en.wikipedia.org/wiki/God_of_the_gaps</a><br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> 2024-10-24T23:58:57Z https://yabu.me/nevent1qqsf3n8hmmw2laj9auwxdy2egdh7n7r4fuq87es4cs9nhyl4yevswdgzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5mqpvv0 In reply to <a href='/nevent1qqsy6ck37yqgkzj88yz0dpwx88cgvmz52dprdw24q2ztyrp5x2cze6s50u5ef'>nevent1q…u5ef</a><br/>_________________________<br/><br/>An even simpler example, I once wrote a bit of open-source code to compute a &#39;modular inverse&#39;, with comments referencing a paper and a website to read up on limitations of my implementation and faster options.<br/><br/>Out of curiosity, I had GitHub&#39;s Co-Pilot write the same function for me. It wrote the exact same code, minus all the helpful comments to help users go learn more.<br/><br/>Citations matter. But that&#39;s sometimes counter to the financial incentives of the people who rent time on LLMs, as they may have to flow some of that money (and attention) back to the people who created the training data.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> [@bstacey](<a href="https://icosahedron.website/@bstacey">https://icosahedron.website/@bstacey</a> ) 2024-09-29T20:57:39Z https://yabu.me/nevent1qqsff4948p82gh6thrj3as0xxt29lpfxx0dy848lqxduuz9v9v9576qzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5x68hdd In reply to <a href='/nevent1qqstu23ktvdtdjgd6z7jzfwmrn5fajyz6eyr2cwtwn4vu4ctwuqtgug87epah'>nevent1q…epah</a><br/>_________________________<br/><br/>Progressive scratchpad collapse is the name of my next b̶a̶n̶d̶ notebook.<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1nf4p4rh06z6n6lsvje4txk7eqs23y3hs8vd7nraq6tgwady5qvsqy3nqe4" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>John Carlos Baez</span> (<span class="italic">npub1nf4…nqe4</span>)</a></span> 2024-09-22T19:44:45Z https://yabu.me/nevent1qqsfw0ykwu6x45y2kyxljsxxq4856r54steyyqhjzydxx37fw46hgeczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5rx788d I like it.<br/> <img src="https://media.mathstodon.xyz/media_attachments/files/113/017/828/366/940/674/original/df18038141cd5f4b.png"> <br/> 2024-08-24T16:02:19Z https://yabu.me/nevent1qqsy2an4xjpx46x28xxlhr6gn8mapdhqkg260sp20u0h9vfgre6vdnczypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym56rgtk3 In reply to <a href='/nevent1qqsrsgmvjuqzpxrw4x02fr06e56meqs9vn7m9hhvecetfac3m2j5jyqw4gl6q'>nevent1q…gl6q</a><br/>_________________________<br/><br/>I’m eyeing fuzix as an option <a href="https://github.com/EtchedPixels/FUZIX">https://github.com/EtchedPixels/FUZIX</a> 2024-08-14T01:08:04Z https://yabu.me/nevent1qqsfcpjkry73lf32mjlh06le6rn6u8xtk0af3zg47hdn0fxvmjkquzqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym5tg8685 In reply to <a href='/nevent1qqstdv9f7ny3sg7xw9jyywdu3dnzweukes9f8deguk75acturd70jzgtum6q9'>nevent1q…m6q9</a><br/>_________________________<br/><br/>Graphics Adapter for Retropixel Yeeting 2024-08-13T18:23:34Z https://yabu.me/nevent1qqs8yn8d4mpdu0p8vgv2gugzaarly7xfarr97ugfv2jc9ugx2nnmjeqzypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym54lm8w2 In reply to <a href='/nevent1qqswpny4nxwnv9hccv2hhmjj5up7pv3rsk03ee3jhldcp8k7ze037ggnxpakx'>nevent1q…pakx</a><br/>_________________________<br/><br/>The Jay Miner designs (Atari 8-bit and Amiga) used display lists. See, for example, <a href="https://www.atariarchives.org/dere/chapt02.php">https://www.atariarchives.org/dere/chapt02.php</a> . The Antic (Atari) and Copper (Amiga) coprocessors are the ones that interpret the tiny instruction sets for waits, moves, and branches.<br/><br/>[@mos_8502](<a href="https://studio8502.ca/@mos_8502">https://studio8502.ca/@mos_8502</a> ) 2024-08-13T18:00:38Z https://yabu.me/nevent1qqsz5m7tmzhpzvj9t62y7kjczatr7a88ywdznn0mqrgd6yknprcxuqszypxf9urd8ryc45f4n32vggy8mcfgt0tcg00u3f2grdrht5zwf4ym569sala In reply to <a href='/nevent1qqs0at6k8cz2vfjykns788cmldgny457wucl2h3jz932u6tlded4dwgj9z45d'>nevent1q…z45d</a><br/>_________________________<br/><br/>while we’re asking for ponies, an 8-bit era trick is reprogramming the palette on the fly to exceed the maximum number of colors per frame. <br/><br/>Another pony would be a way to make ‘display lists’ for arbitrary mappings for starts of scan lines in memory. This allows smooth scrolling of a field, for example, without much cpu overhead. <br/><br/>Just thoughts, feel free to ignore!<br/><br/>[@mos_8502](<a href="https://studio8502.ca/@mos_8502">https://studio8502.ca/@mos_8502</a> ) 2024-08-13T17:46:37Z