To develop working ideas efficiently, I try to fail as fast as I can.
We have this terrible struggle to try to explain things to people who have no reason to want to know.
Don't worry about anything. Go out and have a good time.
It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.
There is no authority who decides what is a good idea.
Scientific knowledge is a body of statements of varying degrees of certainty -- some most unsure, some nearly sure, none absolutely certain.