At some point I stopped caring about Handmade Hero because he just never got out of the global illumination rabbit hole. He should have followed that as a side quest, behind a feature flag. Maybe one week for progress on the game, one week for rendering experiments. He didn't seem to make much progress, and it just fizzled out as he ran out of steam. Finishing should have been a bit higher on the priority list. It was just not setting a good example from a project or self management perspective.