timppu: One (or two) prediction(s) that seemed common e.g. in the early 90s and so was that if and when video calls become a real thing:
1. First failed prediction was that video calls would pretty much replace normal voice calls altogether, ie. as if people always wanted and needed to see the other person they are talking with, and show their own messy appearance to the other party. In reality, people don't use video calls or switch their Teams camera on, unless there is a good reason for it.
So while video calls are possible, they haven't replaced normal voice calls. I usually take a Google Duo/Meet video call to my wife only if I need to show her something (ie. "is this the product you wanted me to buy from the grocery store?"), or I want to prove to her that yes I am meeting my friends watching ice hockey, and not with a bunch of hookers again.
2. The other failed prediction was that we would make those video calls from our living room, from a 200" wall screen TV. Why the heck would we ever do that? First of all there can be all kinds of disturbances around you (shouting and running kids, you are watching TV at the same time or doing something while calling, etc.), and generally people want some privacy when making calls, not making them public to everyone in the vicinity.
To the first point, that's been a prediction since before they existed, basically. A way to scry and speak to someone has always been an object of fantasy, along with projections, astral or otherwise. As someone who is quite asocial, to the point of dreading phone calls even to automated systems, I'm sure you as you; being part of the people whose personal space is known as "Knife Fighting Distance" would understand.
To the second, that doesn't even begin to touch on the unsettling potential implications; especially given devices such as the audience meter which (while opt in), still were made to send signals back to rate the popularity of shows. Given the already shady nature that is modern advertising, I can't imagine anyone wanting to pass up on a quick demographics check by peeping a little eye.