"You can't believe anything science says,
What, even if it's the truth they are speaking? In any case, what do you mean by 'science'?
they're always changing their minds.."
What like 'new light(tm)'? Where did you hear or read this? Please provide specific examples as I'd be interested to see this rather than just a generalised hearsay scenario. Please specify also which type of 'science' you mean.
Finally.......have you always been so closed minded?
Well, that's what I'd think if asked such a redundant question.