Is true randomness real

@sdkman said in #1:

I am not sure why the theory stating that knowing every particle position at a specific time can allow the prediction on what happens next is considered untrue
The uncertainty principle says we can't know the exact position and the exact velocity at the same time.

Does true randomness exist
No, it doesn't, except for in the off topic discussion.

"It has been shown that if quantum mechanics is correct, nature is truly undeterministic."

There are no 100% true statements in science. There are axioms, but these are just assumptions that are true, that are assumed. In my opinion, there is no proof of quantum mechanics. There is measurement data, yes, but not something that is irrefutably true.

Why do I say that, let's consider a different perspective? We look at everything we believe to be true through the perspective of the 3rd dimension. And in the 3rd dimension your statement above may be true, but is it true for all dimensions? What if, in another dimension, time plays a different role. I believe that time plays a role here. Especially if you want to answer the question of whether the universe is "random" or "deterministic".

Perhaps it is undeterministic in the third spatial dimension, where time is only needed to determine the exact position of an object (x y z t), but not to describe space itself.

But how can we be sure that the same is true for a 4th spatial dimension, where perhaps time is not needed to find w x y z and thus chance may not be present.

This is only hypothetical:

The 4th dimension is deterministic, but the 3rd dimension is not (where we are right now). Could this be true?

Just a thought.

@thalassokrator what do you think?

I am most definitely random. After all, I was randomly born, I have randomly lived and will most probably randomly die. What else can I say?

@four_legs_good I get that and I understand what you mean, but what I mean to say is, what if it is only "true" in a certain dimension? What do you think about this thought?

@four_legs_good I see.

What I'm saying is that our universe (QM) may appear to be "random" because we don't see the whole picture. What if the 4th dimension is deterministic. And it has a clear cause and effect, but to us it appears random because we don't see what is going on in the 4th spatial dimension.

@beginnerdev said in #13:

This is my line of thought as well. (or part of my line of thought)
:)