>>11333810Indefinite expression of lactase was given by the Gods. Along with blue eyes, red hair, blonde hair, brown hair, and perhaps even green eyes.
You literally CANNOT provide a better explanation for the rapid emergence and spread of this particular allele. Even if you go all cyclic genocides, and near mass extinction, and repopulating from isolated pockets, and so on. No. It came out of nowhere like all these other traits, and it spread rapidly. Almost like we were CREATED WITH IT from the getgo, and there was no spread or diffusion.
