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by soneil 1099 days ago
10 meters of water is one atmosphere, so they're right - 0 on the inside and 1 on the outside is a pressure differential of one atmosphere.

"almost 4000 meters of water" is "almost 400 atmospheres". About 2.7 tons per square inch. I find that that absolutely unimaginable. - I can't find any equivalence that my brain can make sense of.