Literally none of these are even remotely close to “examples of things people 2000 years ago understood almost as well as us”. Knowing when the beer is ready i

Literally none of these are even remotely close to “examples of things people 2000 years ago understood almost as well as us”. Knowing when the beer is ready is a damn sight less than the chemistry done by even a good number of amateur home brewers these days. Knowing the sheep are pregnant is a far cry from the directed breeding done even at small farms today, to say nothing of the genetic programs at larger ones.