Kindly comments on Fermi Estimates - Less Wrong
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Comments (104)
I disagree that the lower bound is 0; the right range is [-39,39]. Because after all, a falling piano can kill negative people: if a piano had fallen on Adolf Hitler in 1929, then it would have killed -5,999,999 people!
Sorry. The probability is in the range [1e-17, 1e17].
That is a large probability.
It's for when you need to be a thousand million billion percent sure of something.