Share 'What kind of things that are very normal, and common, by most of the people today that will be considered an absurd in the future?'

It's a kind of exercise that could help us to find out what, how, how much, why, when ..., could shape the world and the industries... Could we make a list, like a brainstorming, and then cut what sounds less likely!?   I started with some sentences below, please, fill it as you wish:   Treating addicted people as a criminal instead of as a sick one Killing animals to eat them (or simple eating…