The Big Bayes theorem theory

While we were eating a forkful of what was supposed to be a frittata, but turned out to be very fluffy mushroom scrambled eggs earlier, we were half watching an episode of The Big Bang Theory. 

Long story short, my eye was caught by Sheldon explaining how he is estimating his life expectancy, clearly using Bayes's theorem (although he didn't refer to it in his speech to Leonard).

Good stuff, Shelly!