Similar: for years I've been lugging around the idea of making a game like Civilization but where all of the different theories of history can be turned on/off as modules. Maybe going back to prehistory:

- did fire lead to cooking lead to big brains lead to tools lead to agriculture?

- or was it ice ages ending that lead to agriculture?

- or did oxygen levels change leading to more efficient brains?

- or were we Born to Run?

- or did women's hips change shapes to allow bigger brains?

- or perhaps 2001: A Space Odyssey occurred as written

- or Ancient Aliens...

Repeat for every other highly-debated period of history.

Somehow having all of these in the same modular system feels like it would metabolize them in a way that reading a bunch of separate theories can't really do. Same for OP's anatomy.