I don't buy the physics argument. It's not like egg and sperm-generating cells aren't subject to thermal aging, and yet zygotes are biologically new rather than

I don't buy the physics argument. It's not like egg and sperm-generating cells aren't subject to thermal aging, and yet zygotes are biologically new rather than 18-45 years old. Life should be getting progressively worse through time rather than effectively resetting every generation.