Well, if Rossi's free energy generators worked and were replacing power stations or gasoline in cars or the like, we all would change our mind about Rossi. I guess that means we're probably idiots, because that's highly unlikely.

Cranks constantly demand that we change our minds in response to Andrea Rossi plain as day rigging up another experiment, Randel L Mills releasing some incoherent formula salad, Chris Langan taking an IQ test, or the like.