“ Prediction is very difficult, especially if it's about the future. ”
You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.
~ Niels Bohr
The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
Prediction is very difficult, especially about the future.
Those who are not shocked when they first come across quantum theory cannot possibly have understood it.