I once tried to explain instant messaging to an older woman but she didn’t get the difference to email because she’d regularly use them to instantly chat with her son. That was two or three decades ago. While in theory emails can take days to be delivered the reality is that for a human it is “instant”.
When Covid hit my wife was super afraid of Long Covid but I thought that shit wouldn’t get it. Now I’ve been living in my bed for two years because I’m too weak for much else. Yeah, changed my mind about that one.