Prediction is Very Difficult

Prediction is very difficult, especially about the future.

Niels Bohr
Danish physicist (1885 - 1962)

It is always safer to make predictions about things that you think will happen at a very long range, so you are safely out of the way before your prediction can be proved wrong.

Twenty year forecasts are dangerous.

And of course it is best to keep your predictions very general.

I predict it will get worse before it gets better.