Rules here before we get into my answer.
___________________________
It must be real.
No spam, terrible memes, and pointless posts.
*Woof* 🐺
___________________________
Ok so for mines, I don't have a really dumb thing I believed as a kid but one thing I thought was the dumbest thing I believed but not was that I thought horses sleep while still standing. I later a few years later found out that was surprisingly true, but they mainly do this sometimes.
So yeah, mines had a-bit different outcome, so what was the dumbest thing you believed as a kid, answer and discuss :)
Also, here's an image of a Christmas image I screenshoted from a video about the year 8000.
Enjoy :)