I used to believe a gnat was an animal similar to a goat, probably because of the similarity in their names when written out.
A childhood belief about general

others believed things like this
- When I was a child, I used to think that if you eat an animal, you become that animal
— Hmza - When we were little my sister thought if you mixed cow’s milk and water you’d get goat’s milkAnon
- I used to believe an "Ego" was a kind of hair style, similar to a mullet.Anon
- I used to believe that the Bible was written by Moses, with God whispering everything in his ear, in English. — Jj
- I used to think my priest was a bit foolish for never having noticed that Dog is God written backwards— anticap
- I used to think that 'non toxic' was a color. I always did wander why is was written on every crayon.— Maddy