DDDsDD999 wrote:Ninijutsu wrote:Quantum mechanics tells us that reality at a microscopic level is probabilistic in nature (electrons, protons), and therefore is fundamentally unpredictable. However, at a macroscopic scale, main events are most likely set in stone and deterministic.* Combining these two ideas, it's likely that there are events in our lives that are going to happen no matter what, but there is minor deviation in the path we take in between, due to the scale of the processes that comprise our consciousness as we know it.
*Think of it this way: let's say we copied the state of the universe as it was exactly one year before the beginning of world war 2, as if it were on our computer (to simplify the example). Now, if we pasted this state of the universe into trillions of different identical realities running at the same time, every single one of these realities would end up in world war 2 in a year. It makes logical sense if you think about it a bit.
I disagree with the sentiment that deviation in the path would still end with the same result. The notion that macroscopic events are "set in stone," is very misguided, what evidence would you have regarding the predestination of said events?
Everything happens because of a cause, and has it's effect. That effect can't be changed so no matter how many times you "paste" it in different universes, the result would be the same. There's no choice, really, just reaction.