### One Hundred Interesting Mathematical Calculations, Number 7: Archive Entry From Brad DeLong's Webjournal

## One Hundred Interesting Mathematical Calculations, Number 7: Archive Entry From Brad DeLong's Webjournal

What's the chance that the breath you just inhaled contains at least one air molecule that was in Julius Caesar's last breath--the one in which he said (according to Shakespeare) "

*Et tu Brute*? Then die Caesar"?
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