Maybe evolution's doing just fine and we're just overestimating it's speed relative to the speed of environmental change. Also evolution can make some very cru

Maybe evolution's doing just fine and we're just overestimating it's speed relative to the speed of environmental change. Also evolution can make some very crude selections - https://www.quora.com/Why-do-women-have-periods-What-is-the-evolutionary-benefit-or-purpose-of-having-periods-Why-can%E2%80%99t-women-just-get-pregnant-without-the-menstrual-cycle/answers/4625918 https://www.quora.com/Why-do-women-have-periods-What-is-the-...