Quite a few interesting ways to count down, got my head spinning for a bit. Definitely found myself stuck on a couple of puzzles trying to think, and it can feel overwhelming to look through the guide especially when you hit the atomic level.
All that said, it was a bad idea to play this game while feeling sleep-deprived, but my mind was still pretty engaged for a while, so props for that. The audio certainly helped with the concentration, too.