A paper containing only things we already knew for sure is not a real scientific paper at all.

It's easy to sit back and feel smug because physicists might be wrong -- but it's impossible to do anything worthwhile without taking on that risk.

> A paper containing only things we already knew for sure is not a real scientific paper at all.

It could be. Confirming results is part of the scientific process.

Things that are “known for sure” don't need confirmation; they are already as confirmed as can be.

Of course, very little ever meets that description.