It's said that the only thing that prevents the Newtonian concept of freezing all particles in the universe and calculating their various trajectories and momentum in order to figure out what the future is from becoming a reality is the fact that a single observer is incapable of simultaneously determining a particle's momentum along with its position relative to every other particle in the universe.

This is blamed on a thing they call the "Heisenberg principle" and which essentially states that the degree to which a particle's momentum is able to be determined is inversely proportional to the degree to which its position in relation to other particles is capable of being determined.

So, you either know where a particle is going, or you know where it is, but never the twain shall meet...

But if I'm driving a car that's supposed to arrive in some city several hours away, and I'm using GPS to predict my arrival, and I wind up arriving there at about the same time that my GPS told me I would...

Doesn't that mean that the problem has pretty much been solved?

I mean, if you have to travel from Denver to Chicago, there's sort of a built-in equation in terms of how long that will take.

If the Heisenberg principle were real in terms of lived human experience, you'd be incapable of traveling from pretty much anywhere to any other location, because you'd be trapped in the quandary of being a collection of photons whose speed and distance were impossible to determine simultaneously, wouldn't you?