Most people are terrible at predicting the future in this way. Some of the most accurate predictions sound like (or are) jokes at the time, like when JK Rowling was writing her first book as basically a "welfare mom." She did a lot of the writing while her baby napped at some eatery owned by friends/relatives. She would make jokes to the effect of "When my book gets famous, it will put your place on the map!" That basically all came true, from the book being famous to it making the place she wrote it famous too.

But when you go back historically, predictions of what life would be like "now" all left out the world changing invention of computers and internet.

There is a scene in the movie "The Graduate" where he is at a party and everyone is telling him what he should go into as his career because it will be big in the future. One person tells him "Plastics!" This was a joke at the time, a ridiculous statement. Years later, the plastics industry used that bit in a TV commercial.

If you really, sincerely believe "The Future is all about X industry," you aren't telling people that on the internet. You are quietly behind the scenes buying more shares in X or getting training to work in X or otherwise trying to make sure you are the firstest with the mostest in X.