I've worn contacts for 10 years, and although every now and then one will pop out, it's pretty wild to me that you can just stick them on your eyeball and you don't feel it and it just stays there all day. It seems like it would be popping out every minute or 2 or from blinking. Seems like one of those improvements in technology that would blow people away if you went back in time. I guess telling someone about laser surgery would be even more wild, but you get my point.