3 ms·And yet, as humans, we've found ways to repeat mistakes first made millenia ago.by ISL 6y agoAnd yet, as humans, we've found ways to repeat mistakes first made millenia ago.ceejayoz 6y agoWe've also managed to fix quite a few. No one's fussing much about the ecological impacts of getting rid of smallpox, polio, and guinea worm.ISL 6y agoAgreed on those particular points! :).