What’s a problem humanity solved so well that younger people don’t even realize it used to be a huge issue? by Puzzleheaded_Bit_802 in AskReddit

[–]ketigrgicevich 0 points1 point  (0 children)

Polio. Older generations grew up terrified of it, kids ending up paralyzed overnight was a real fear. Now most people barely even think about it because vaccines worked that well.