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## Main Question or Discussion Point

I thought about doing a proof of the Pythagorean Theorem, a proof that the harmonic series is unbounded, a proof that

Please show me a cool proof that an ordinary audience could understand.

*e^π > π^e*, a proof that*e^(b*i) = cos(b) + i*sin(b)*, a proof that*√2*is irrational, but honestly, none of those are cool enough.Please show me a cool proof that an ordinary audience could understand.