Also population 100% robots

Theremin

We have several. Fire extinguisher is my favorite house/apartment warming gift to give.

Daily wash with water and foaming hand soap. Foaming soap on lenses, rub with fingers, rinse. Dry with cotton hankerchief. I usually keep my glasses 2 years before replacing and haven't had any issues with the anti-reflective coating washing this way.

Same

How about rocket companies that can get crew to the ISS and back?