oblique fact: when the monty hall host reveals the door that contains the goat, they are technically revealing 1/3 bits of information about which door the car is behind.
that information allows you to improve your odds of winning the car, and it just so happens that switching is how you act on this information
what is a fractional bit? it's a bit with uncertainty.
For example, if you ask me a yes/no question and you know that half of the time I just answer randomly, and the other half I tell the truth, then my answer will contain 1/2 bits of information.
if you believe that you have a 90% likelihood of winning a lottery, and then 100 of your friends lose and you use bayes rule to update your likelihood to 50%, did you just lose information
(I didn't actually do the calculation to see what bayes theorem tells us what the posterior likelihood would be I just took 50% for examples sake lmao)
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