I used to believe that if enough people would stare at a single point in, say, a brick wall for long enough, they could collectively burn a hole through that wall.
A childhood belief about special powers

others believed things like this
- Pink Floyd- Brick Wall.
I used to believe it was "we don't need no fart control" in the second line there.— Norwegian Dude From Kopervik - I used to think the line in Pink Floyd's Another Brick in the Wall was "No dogs allowed in the classroom."— Gretchen
- I had a little hole in the wall under my bed when I was little and I thought that Fraggles lived in there.....— Tina
- I used to believe that at the end of the universe was a big plywood wall.— matt
- I used to believe that the cool aid man was evil and he'd break through my wall and get me.— tammy
- I use to believe that my grandpa invented the wall because his name was WallyAnon