Skeptics, what is something/someone that believers think is correct but you doubt it? and why?

I’m interested in hearing from the other side(skeptics) as to what are the statements or popular UFO figures which a lot of people in the community believe is correct but you (and possibly other skeptics) doubt it heavily.

TIA

Ignore this paragraph. This is just to increase the character count. Hope this satisfies the 300 character count.