8 ms·
> In reality it either is or it isn't. If you have good explanations like we do *in physics you don't need probability*. So... are you saying Statistical Mecha
by fjkdlsjflkds 4y ago
> In reality it either is or it isn't. If you have good explanations like we do *in physics you don't need probability*.
So... are you saying Statistical Mechanics (to give an example) is not part of Physics?
In real life, the amount of information you have (and can have) about a physical process is limited. You can either throw your hands up and say "we can't know for sure", or you can use probabilities to try to get somewhere.
How do you define the position of an electron without using probabilities?
- ThomPete 4y agoJust because it's limited doesn't mean I can assign probability to it. As I said. The difference is closed and open systems. No problem with probability of getting a given card based on what have already been dealt in ex a game. The problem arises when it's applied to predicting reality in open ended systems as I said weather, economics, climate etc. and where history is being used as some sort of benchmark of the future. There is no probability whether an astroid is on the path towards earth. It either is or it isn't. In other words. We can either explain or not.
- fjkdlsjflkds 4y agoSo, would you claim that: "There is no probability whether an *electron* is on the path towards earth. It either is or it isn't."? I guess you must know something that Heisenberg didn't. Good luck defining things such as "path" and "position", without using probabilities, for non-macroscopic objects. Also, what is your opinion about the classical "double-slit experiment"? Either a particle passes through a slit, or it passes though the other, right?
- ThomPete 4y agoEverett is your friend
- kgwgk 4y agoThere is no probability whether the next card in the deck is an ace. It either is or it isn't.
- ThomPete 4y agoThere is a probability, it can be described based on what cards have already been dealt. It does not change whether that specific card is an ace or not. So yes we agree.
- kgwgk 4y agoDo we also agree that - even if you don’t - other people are able to conceive a probability that the next card in the deck is an ace, a probability that I was born on a Saturday, a probability that Germany wins the World Cup, etc.?
- ThomPete 4y agoIt's not the discussion whether people can conceive all sorts of things. The discussion is about its relationship to reality.
- kgwgk 4y agoI’m pretty sure you can as well! If you can pick Brazil or Morocco to win $1000 in case the one you choose wins the World Cup which one do you pick? Why? Are you really indifferent between them because you cannot conceive how saying that one is more likely to win than the other could have any relationship to reality?