Update on this one: I felt a little as though I'd been neglecting the engineering fundamentals work relative to the statistics work on here. Happily, this has now been rectified: there is a very solid note about how memory works in computing systems now, along with some basic learning resources about pointers.
Extremely useful to know, even if you're not intending to use pointers personally.
Some good (if terrifying for me) news: Arca is now in early access. That's right: now you can buy access to my notes on statistics and engineering fundamentals, exercises and access to a community of fellow students where you can ask questions, comment on others' questions and get them answered by me. It's a great opportunity to learn something that will make you better at basically everything you do from someone cool. Take a look!
https://deadsimpletech.com/arca