Riku Mattila :verified:

Nuke engineer retired due to ALS. Defined by the former, not by the latter.
Working part-time as a nuclear safety advisor for Steady Energy Oy.

Signal: rmattila.74 https://signal.me/#eu/tmu4pLe0WkqVetmWBtc8zZz-rTszGkmTcgAH_PhBOHt2WBzaWKZMKoLaQgHFX_O0

Public Key

npub17gncdveu83p3xlrr229v8dsy8pejlh5dcad8g8vh8ku5wumz2mcq39j7lx

NIP-05 Address

rmattila74_at_energydon.fi@momostr.pink

Profile Code

nprofile1qqs0yfuxkv7rcscn03349zkrkczrsue0m6xuwkn5rktnmw28wd39duqpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsg66d4u

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub17gncdveu83p3xlrr229v8dsy8pejlh5dcad8g8vh8ku5wumz2mcq39j7lx

Show more details

Last Notes

2026-04-19 14:55:47 UTC

I finally got this thought formulated.
https://nukerants.fi/index.php/20-on-fast-reactors

2026-04-08 10:35:28 UTC

- reply

TVO balance sheet. That's what they charged the shareholders last year.

2026-04-08 10:29:13 UTC

- reply

3.7 c/kWh for Olkiluoto 3.

2026-03-09 15:45:07 UTC

http://energi.se/artiklar/2026/mars-2026/finskt-bolag-vill-bygga-sma-karnvarmereaktorer-i-sverige/

2026-03-09 14:27:30 UTC

https://www.hs.fi/paakirjoitukset/art-2000011821509.html

2026-02-17 08:18:19 UTC

https://www.linkedin.com/posts/steady-energy-breaks-ground-on-europes-first-share-7429426146066239488-tWkK

2026-01-28 11:52:32 UTC

I managed to engineer myself out of yet another life-threatening situation.
Two months ago, I suffered severe biting injure to my tongue as a result of careless routine care. The tongue swell out of mouth, dried up, and inflamed so badly that doctors said there was such high probability of fatal sepsis that treatment would be a waste of resources.
So I set to work on my own. Using prescription-free chemicals, I managed to get rid of the infection, and with a series of jigs made from silicone rubber and 3D printed nylon, I finally managed to force the 4 cm protruded tongue back in. Now it's safe to say: I made it, against odds.
I'm not ready to give up yet, too much important stuff to do.
https://energydon.fi/system/media_attachments/files/115/972/572/531/116/543/original/1d64a086b856fb8d.png

2026-01-18 06:14:06 UTC

Trump is turning the US into a Russian-model kleptocracy.

2025-12-02 15:02:06 UTC

My 2 c:
Accessibility is essential, but designs that *inconvenience healthy users* are counterproductive. Good accessibility follows universal-design principles: it improves usability for everyone, not just a specific group. When accessibility changes slow down, restrict, or complicate tasks for healthy users, they create resentment and make accessibility look like a burden instead of a benefit. This harms long-term support, because people resist features that reduce efficiency or satisfaction. Accessibility should remove barriers, not shift them from one group to another. Well-designed solutions are adaptable or optional, helping those who need them without hindering those who don’t. The goal is inclusion through flexibility—not forcing all users into a lowest-common-denominator experience.

2025-10-30 07:59:56 UTC

Aletaan olla siinä, mitä 11 vuotta sitten ennustin.
https://puheenvuoro.uusisuomi.fi/mattila/166138-elamanhalun-hinta-ja-kustannus/

2025-09-09 08:37:12 UTC

The cabin rhymes nicely with the house.
https://energydon.fi/system/media_attachments/files/115/173/426/008/597/174/original/71bba1fd9f438354.png

2025-08-30 08:14:54 UTC

https://puheenvuoro.uusisuomi.fi/mattila/taisteluni/

2025-08-19 17:42:59 UTC

Power is on.
https://energydon.fi/system/media_attachments/files/115/056/657/515/342/752/original/9b4cb328408d309a.jpg

2025-08-12 18:20:13 UTC

- reply

We have some rhel9 binaries with no source code.

2025-08-12 08:49:26 UTC

Think I'm gonna need a RHEL9 offline number crunching box at home. No clue of the current HW scene.

2025-07-05 10:02:56 UTC

I don't think there's any other disease where regular control appointments start with the question, "Do you still insist on being kept alive?"
There indeed is a parallel reality for some of us, one where things like mental wellbeing are a joke, and even the right to live is decided on a yearly basis. Doctors looking for signs of weakness they could use to deny care.
I can handle this, not whining about my own fate, but most people can't. And there are so many of us. 200 cases in Finland every year.

2025-07-01 07:49:25 UTC

https://www.steadyenergy.com/news-article/steady-energy-completes-eu32-million-funding-round-accelerates-towards-worlds-first-commercial-smr-constructs-pilot-plant-in-helsinki-city-centre

2025-06-28 12:30:56 UTC

No point reporting me (to myself ) for "AI bullshit" when I demonstrate how a disabled person can use ChatGPT to sketch their ideas.

2025-06-27 14:21:45 UTC

https://puheenvuoro.uusisuomi.fi/mattila/piikki-yhteiskunnan-lihassa/

2025-06-26 07:15:10 UTC

- reply

https://www.linkedin.com/posts/alberto-gil-cordero-397093213_%F0%9D%97%A7%F0%9D%97%B5%F0%9D%97%B2-%F0%9D%97%A6%F0%9D%97%A0%F0%9D%97%A5-%F0%9D%97%A7%F0%9D%97%B5%F0%9D%97%AE%F0%9D%98%81-%F0%9D%97%A6%F0%9D%97%B8%F0%9D%97%B6%F0%9D%97%BD%F0%9D%97%BD%F0%9D%97%B2%F0%9D%97%B1-%F0%9D%98%81%F0%9D%97%B5%F0%9D%97%B2-activity-7342801123415621632-7Zlu

2025-06-26 04:30:42 UTC

Getting out of bed would more than tenfold my daily death risk. Not worth it.

2025-06-25 07:44:42 UTC

- reply

Olis edes katseohjaustuki.

2025-06-21 09:38:05 UTC

Ei tarvi aurinkorantaa, kun meillä on Vantaa. https://www.youtube.com/watch?v=4AQkIgQceck

2025-06-16 12:37:13 UTC

https://puheenvuoro.uusisuomi.fi/mattila/kimalaisen-mentava-aukko/

2025-05-08 17:51:17 UTC

- reply

Wind must blow freely to keep the foundation dry.

2025-05-08 17:34:28 UTC

Side boards to doors and windows, and tar to foundation, and outside is ready.
https://energydon.fi/system/media_attachments/files/114/473/412/667/194/730/original/3c47d26316b079a7.jpg

2025-05-06 08:14:00 UTC

- reply

1/400 ei ole erityisen harvinainen, yli 10 000 nykyistä suomalaista sen tulee saamaan.

2025-05-05 04:38:25 UTC

- reply

Paisari hajos ja samaan aikaan pihassa oli parisataa kantoa joita ei saa oikein mitenkään hävitettyä. Sopii vieläpä Weberin ritilät suoraan.

2025-05-05 04:29:46 UTC

- reply

Minä tein ite (kaveri hitsas) 200-litraisesta kalvovikaisesta paisuntasäiliöstä. Syö kokonaisia kantoja.
https://energydon.fi/system/media_attachments/files/114/453/340/241/623/025/original/3e24923568e9913d.png

2025-04-26 09:05:27 UTC

Since life no longer has anything for me, I live through the experiences of other people.

2025-04-03 11:27:50 UTC

Trump is aiming at having his picture on a trillion-dollar bill.

2025-03-25 11:25:43 UTC

- reply

For example, only single-failure tolerance is required in spite of designing the plant for preventive maintenance while in operation. PRA is then used by the utilities to show that shutting the plant down would pose an even bigger risk than letting the plant stay online at N+0 for as long as they want to.

2025-03-25 11:13:29 UTC

- reply

The problem with harmonization is that many countries would be happy with the excessively lax US NRC regulations that are an accident waiting to happen.

2025-03-21 05:41:08 UTC

People tend to think medical research is charity. Until disease hits them. Then it's "why isn't more being done" all the way.

2025-03-13 08:05:01 UTC

Cracking DRMs is a basic human right.

2025-03-10 15:49:55 UTC

Thank God our Bf-109s didn't have a remote kill switch.
https://energydon.fi/system/media_attachments/files/114/138/914/782/091/144/original/fbbe3de2719cd21c.png

2025-03-06 16:47:31 UTC

Valttia päätykolmioon.
https://energydon.fi/system/media_attachments/files/114/116/501/028/309/713/original/c81934bee5f4f9cb.png

2025-03-05 17:10:32 UTC

- reply

I do quite heavy rendering and video processing. On and plugged in 24/7. Thunderbolt dock for big screen and eyegaze stuff. 13".

2025-03-05 15:43:44 UTC

Gonna buy my first non-Dell laptop in 15 years. This 9305 has been absolute crap since day one.
Recommendations?

2025-03-05 11:51:46 UTC

https://apnews.com/press-release/globenewswire-mobile/copenhagen-5eb88603bdb9a2cf5a7646d10595c7c3

2025-03-05 10:44:25 UTC

Job secured.
https://www.talouselama.fi/uutiset/te/a314be99-701b-452b-9b4c-dc5e5a065a8c?ref=ampparit:4e06&_gl=1*zerzfn*_ga*NTE2MDUxNjE5LjE3MDU0OTU0ODk.*_ga_3L539PMN3X*MTc0MTE2OTE3OS4yNC4xLjE3NDExNzAyMzMuMC4wLjA

2025-03-04 19:06:56 UTC

- reply

And the King does nothing?

2025-03-03 18:40:45 UTC

Russia and Ukraine fought. America surrendered.

2025-03-03 09:03:47 UTC

Tämmöinen lähti OP Länsi-Suomen johtajalle:
Hei,
mahtoiko olla tietoinen linjaus vai vahinko, että OP esti 11.2. päivityksessä kaikki tavat käyttää sähköisiä pankkipalveluita (Windows-pohjaisilla) kommunikaatioapuvälineillä? Tässä on nyt mennyt kolme viikkoa, ja ainoa vastaus asiakastuesta on ollut kehotus siirtyä käyttämään sovellusta suoraan puhelimesta, mikä halvaantuneen vinkkelistä on lähinnä kettuilua. Minkään muun kokeilemani pankin mobiilisovellus ei kategorisesti estä Android-puhelimen käyttöä Windows Phone Linkin kautta. Avasin jo tilin Danskessa, kun jotenkin pitää kädettömänäkin laskut maksaa.
-Riku

2025-03-01 11:17:41 UTC

- reply

on admin-tunnarini, tällä postaan.

2025-02-20 20:07:46 UTC

https://energydon.fi/system/media_attachments/files/114/038/007/690/120/333/original/067f546da9336213.png

2025-02-09 16:03:11 UTC

- reply

Also, 1,000 MW RPVs are much easier to manufacture than 1,500 MW ones.

2025-02-09 15:12:31 UTC

- reply

AP1000 is IMO the best LMR candidate.

2025-02-09 09:43:30 UTC

- reply

I will set up two-way cameras and a Home Assistant VPE that I can use to talk to the living room. HA is in cloud already so I can operate the home automation.

2025-02-09 05:55:30 UTC

For the past 25 years, I've spent all my capacity on making this property the perfect place for our family. And now I will be carried away due to logistical reasons, never again being able to return.
This sure builds character.

2025-02-04 14:01:13 UTC

- reply

Minulla käytössä toot.io. Niillä on käsittääkseni ainakin joku yhteys Suomeen.
https://toot.io/mastodon_hosting.html

2025-02-02 16:22:02 UTC

Next Friday they will tell me if I need to leave my family to stay on life support.

2025-01-26 13:33:58 UTC

- reply

TIL that there are also boost bots you can follow.

2025-01-26 12:12:07 UTC

- reply

Oodi?

2025-01-26 04:43:59 UTC

- reply

Valkataan näkyvyydeksi "vain mainitut".

2025-01-24 09:45:11 UTC

- reply

Hajautettukin kuulostaa kaoottiselta. Miten olis vapaa?

2025-01-24 08:55:06 UTC

- reply

Reilu kauppa on vähän poliittisesti leimautunut termi.

2025-01-24 08:00:15 UTC

- reply

The greatest surprise in my career was the overwhelming professionalism and attention-to-detail throughout the Spanish nuclear industry.

2025-01-08 08:17:18 UTC

Whole new factory.
https://www.iltalehti.fi/kotimaa/a/ab929f96-192b-4b5a-aae4-403a2d212821

2025-01-05 21:58:04 UTC

Power Production in Finland Today.
From: https://www.fingrid.fi/sahkomarkkinat/sahkojarjestelman-tila/
#GridMix
https://energydon.fi/system/media_attachments/files/113/777/985/754/995/488/original/de92e3ee240d5707.jpg

2025-01-03 17:31:59 UTC

- reply

Terveitten luksusta moinen valitus.

2024-12-28 21:58:06 UTC

2024-12-23 21:58:05 UTC

2024-12-23 20:32:35 UTC

Feels good to be free
https://youtube.com/zsqe1Sbmu8M

2024-12-08 17:34:27 UTC

Next week will be the 12th anniversary of my #ALS diagnosis. 11 years ago I was given six months to live.
F..king never give up.
https://energydon.fi/system/media_attachments/files/113/618/401/613/878/709/original/a2d0c38083174d00.jpg

2024-12-07 08:41:01 UTC

- reply

We let her go with a kick scoot first.

2024-12-07 08:07:01 UTC

There should be a standard for power tool batteries so that people could choose the best tool instead of the one they have batteries for.

2024-12-06 11:15:40 UTC

Tästä kun Twitterissä kirjoitin pari vuotta sitten, Mäenpää tuli viisastelemaan että en siviilinä ymmärrä asiasta mitään.
https://www.hs.fi/suomi/art-2000010881303.html

2024-12-04 06:15:41 UTC

Maybe Trump will settle for the English-speaking territories of Canada.

2024-11-27 21:58:06 UTC

2024-11-27 13:25:31 UTC

- reply

Overengineered or not, it's still pretty cheap.

2024-11-27 13:14:10 UTC

- reply

It is not directly dangerous after a couple hundred years, but the transuranics must be kept out of contact with groundwater.
The waste will remain retrievable if the need arises.

2024-11-27 09:21:39 UTC

- reply

Minulle tärkeintä on pitää huolta, että meillä on hyvinvointia tulevaisuudessa. Kumpikaan puoli ei tässä loista mutta koen, että fiilispohjainen lyhytnäköisyys istuu vasemmistossa syvemmällä.

2024-11-27 06:55:36 UTC

- reply

Silti voisi olla
kiva pystyä valitsemaan algo, joka tarjoilisi paljon tykättyjä postauksia. Kun eivät ihmiset buustaa.

2024-11-24 10:11:34 UTC

- reply

Minulta on 11.5 halvausvuoden aikana katkenneet käytännössä kaikki livekaveruudet, entinen pomon pomon pomo, serkkutyttö ja sisko miehineen enää joskus piipahtaa.
Vähän karua oli, kun viiskymppisille ei kesällä tullut ketään. 38-50 v on niin pitkä pala elämää että unohtuuhan siinä.

2024-11-24 08:32:42 UTC

Yi Peng 3 tried to cut even more cables, anchor was dragged 400 km.
https://youtu.be/fB-vEp3wr-0

2024-11-22 04:38:36 UTC

https://yle.fi/a/3-10116885?utm_medium=social

2024-11-20 13:35:18 UTC

31 m/s on the warning maps, first time ever.
https://energydon.fi/system/media_attachments/files/113/515/531/289/864/130/original/8a68247b4dcfc024.png

2024-11-19 09:06:08 UTC

Would be a shame if the single Kaliningrad-St. Petersburg cable were damaged.

2024-11-17 18:21:48 UTC

- reply

Someone should hint him. I closed my account due to accessibility issues.

2024-11-17 17:14:17 UTC

- reply

Is Hamill bridged?

2024-11-17 09:48:08 UTC

Life is just a few meters away.

2024-11-17 07:21:52 UTC

- reply

Wish there was a way to link the Mastodon account with Signal.

2024-11-16 20:15:47 UTC

Guess who also was 78 when elected for his final term.
https://en.wikipedia.org/wiki/Urho_Kekkonen

2024-11-10 21:58:12 UTC

2024-11-09 09:54:45 UTC

- reply

Confirmed.

2024-11-06 05:54:15 UTC

The only reason the US elections matter to us is that we have let ourselves become too dependent on them. Time for Europe to step up and take matters in our own hands.

2024-10-23 06:15:52 UTC

Had a dream where I accidentally presented my wife with my ex-gf's name.

2024-10-20 19:29:46 UTC

I never thought my 1,600-liter central heating system would mostly be fired with wind, but here we are.

2024-10-18 19:37:12 UTC

- reply

As a civil servant, I tried to be loyal to the public, not necessarily to the organization (nuclear safety authority) that paid my salary. Now, working in the private sector, I feel financial responsibility towards the company but they know that my loyalty to the public hasn't gone anywhere. Me resigning over safety concerns would likely kill the project.
Love - meh.

2024-10-17 18:32:21 UTC

Tilasin itelleni paidan.
https://energydon.fi/system/media_attachments/files/113/324/184/907/066/700/original/8dc2b0a9a13475f9.png

2024-10-11 19:34:53 UTC

Having worked closely with the German nuclear industry, I hope they stay out. Tired of the constant half-truths and outright lies.

2024-10-10 09:15:20 UTC

https://www.steadyenergy.com/news-article/third-city-in-finland-to-pioneer-smr-for-heating

2024-10-06 15:40:02 UTC

- reply

The hospital in Pori has been kind enough to outsource a team here in Espoo so that I can be physically with my family. But the private company (Mehiläinen) is currently doing such a crappy job with the team that I think getting rid of them is the highest priority. You must be able to feel safe in your home.

2024-10-06 15:19:26 UTC

- reply

We are having a phone conversation with the hospital on Tuesday and I have a hunch they are going to suggest that as well.

2024-10-06 15:10:59 UTC

Considering having my ass hauled to a flat in Pori. Maybe it's time to give wife&kid a private home at last. We communicate via WhatsApp anyway so nothing would change in that respect. I could still operate the home automation and cameras. And the team would certainly be better managed than now.

2024-09-28 17:12:20 UTC

CO2-free steel from Pori. Where else. We know metals.
https://www.metso.com/portfolio/dri-smelting-furnace/

2024-09-22 06:25:33 UTC

Nuclear safety has been learned the hard way over the decades. To avoid a new series of "learning opportunities", newcomers in the nuclear industry should hire enough nuclear safety veterans to detect weak spots in their designs as early as possible. Otherwise, we will end up back in the 1970s safety level.
Small does not automatically imply safe.

2024-09-21 08:38:00 UTC

A rare angle towards the east over the Esplanadi.
https://energydon.fi/system/media_attachments/files/113/174/624/704/580/883/original/696c2526d9110e01.png

2024-09-19 15:37:00 UTC

Näin viime yönä unta, että etusormeni oli lumottu ja paransi paikallisesti halvauksen kun kopautti ko. kohtaan ja sanoi pim. Mutta kun se sormi itse oli h..vetti halvaantunut niin ei päässyt kokeilemaan.