I've had Susan Sarandon play my mom and now Lesley Ann Warren has played my mom so if I could have Debra Winger play my mom then I would have the trifecta of my favorite actresses playing my mother.
It's absolutely stupid that we live without an ozone layer. We have men we've got rockets we've got saran wrap - fix it!
My point is that perceptual bias can affect nut jobs and scientists alike. If we hold too rigidly to what we think we know we ignore or avoid evidence of anything that might change our mind.