Of course you will always assume the generation after you are a shower of slack-jawed ingrates

What are the things that you do now without thinking but that people younger than you find strange? They look at you and shake their heads as if they’d seen you trying to start the fire with some flint and two rocks.
When I’m making the “hey, give me a phonecall when you get a chance” gesture, I still know why we need to use the baby finger because I remember receivers. But, because of technology, who knows what future generations will do when they want to silently indicate to someone to phone them? They might point at their nose or their cat or something.