Found by cortex over on Metafilter was this 2022 talk where someone noticed that the value of the constant pi in the source code of Doom was slightly incorrect. It’s a very tiny difference, and the results aren’t really visible in the game. So Luke Gotszling got the idea to compile the game with different values, and to see what the results are. They gave a talk about it! It’s 19 minutes long, and may be interesting if you’re of that frame of mind.
Non-Euclidian Doom: what happens to a game when pi is not 3.14159…. (Youtube, 19 minutes)
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