When I was young I thought that if I stopped to tie my shoe or look at something on the ground, another version of me in another dimension would be a few seconds ahead. So, each time I paused during a walk, I'd run to try and catch up to my other self.
A childhood belief about general

others believed things like this
- When I was a kid, I used to believe if you were watching TV, and you turned it off, it paused.Anon
- I thought ground beef was the meat they scraped off the ground at the slaughterhouse. Yuck.Anon
- I used to believe that if you jump in a toilet, they lead you to another dimension.— beep.
- When I was little i thought that seconds were so fast that you couldn't count them.— Baby
- I used to think the song "Walk this way" by Arosmith went horse and sleigh insted of singing walk this way.— Derek
- Until just a few seconds ago, I thought gherkins were beans or something weird like natto...Anon