#hottake I don't like the "subsidy equation" or "bitcoin supply equation". It's too theoretical.
I'd rather see a one-liner that does a bitshift right and a stdout to show that the cap is actually a little bit under 21M
Discussion
Also thank you Jameson Lopp for writing this article: https://blog.lopp.net/how-is-the-21-million-bitcoin-cap-defined-and-enforced/
If I didn't find it I thought I would've gone insane after reading the 2nd edition of Mastering Bitcoin and getting "the wrong answer" when trying out the python code.