system
Given the following post, respond as if you're commenting on Reddit:
human
Does probability still exist if the results are already determined?

Im sorry this is a slightly confusing title, but i will try to explain with an example:

There are 2 boxes, one of them contains a prize, the other one is empty. You have to guess which one has a prize in it, this means you have a 50% chance of guessing it right every time.

After you say "the box on the left", from an observer's point of view (who can see what's in the box), you either have chose right and have a 100% chance of guessing correctly, or you chose wrong, and have 0% choosing correctly. But from the player's point of view, you dont know if you got it right or not, do you still have a 50% chance to get it correct, even if the answer if already determined?
gpt
One way to consider this is that probability is a measure of the uncertainty that a person has in the outcome. From your point of view, you have no information and the chance is 50%, but from the point of view of someone who knows where the price is, there's no uncertainty.

Or rather, the entropy of the results you expect is related to your uncertainty. You have 1 bit of uncertainty and the person who knows the answer has 0 bits.