In the 50s, some futurists predicted food pills instead of meals. It never happened.
The biggest reason futurists fail is that too many predictions are based on the possible, rather than the desirable.
It’s now possible for anyone to take all their nutrition from pills. But people enjoy eating food. That’s why we don’t take pills instead.
If you want to predict the future, you need to deconstruct human nature. You also need to know what will be possible. Where these two things intersect is where accurate predictions can be made.
And that’s why I can already tell you what your iMac will be like in a few years.