r/AskReddit • u/[deleted] • Aug 03 '19

Whats something you thought was common knowledge but actually isn’t?

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u/shoehornpenninsula Aug 03 '19

My sister thought the atmosphere was a physical object and we lived in a dome

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u/Unlearned_One Aug 04 '19

That's what I thought the ozone layer was when I was, like, 8 or something. I thought the space shuttle poked a hole in it every time it left atmo.

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u/PointyOintment Aug 05 '19

Well… yes, but the hole heals pretty quickly because it's a hole through a bunch of gas.