316: The Lovecraftian Squirrel Situation
Dear Hank & John
00:00
Are We Walking Around Upside Down All the Time?
Avery asks how we know that the earth is straight up and down, with the northern hemisphere on top and the southern hemisphere on the bottom. Is upside down even real? Tbrava: How weird is it that we're in a vast universe that is maybe infinite? And would it matter if the earth was slipped the other way?
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