AFAIK it all boils down to the fact that during embryonal development our cells, which at that point were just a blob of undifferentiated autonomous chemical machines, somehow managed to unanimously agree upon the cardinal directions (up-down, left-right, front-back) for future development - and thanks to this, we don’t have toes growing out of our ears.
You JUST realized that. 🙄
I mean, there are a lot of things that we’ve always “known”, but one day you just really thing about it and realize how fucking wild it is.
That’s why there is an entire community for shower thoughts: because people sometimes get these sudden realizations. But honestly, you got me - I realized it a few days ago and only got around to post it “now”.