La vita dà, e la vita daje

Sifo-dyas is haunted by a future he cannot escape from.

The Force looks at the actions of the living beings that live in the Galaxy, and predicts what some of those choices are going to lead to in the end.

Even considering Seers, the Force probably didn't just decide "Hey! You're going to see everything I do!" it's just good (or bad) luck that a poor soul was born more in contact with the Force than others, and so could see all the predictions the Force made better than others!!

This is why a vision is never going to be true 100% of the time, because it is a future not wirtten in stone, it can be changed, sometimes the change is accidental or sometimes it's desired, but again, it happens because of the actions of the individuals! Sometimes it does not even change! Because the Force predicted that someone would know of that future, and would do exactly the actions that were going to lead to that end, and there was nothing they could do!

The Force is not some some entity who decides what to do on its own, it's a field that binds the galaxy together, everything it does is not part of any plan, it just makes it happen based on the actions of the individuals of the galaxy.

A person is not just a pawn in the grand scheme of things, it is their choices that are going to determine their future, not a pre-existing future.

It's about the Cosmic Force and the Living Force interacting with each other and giving life to the universe without being interrupted by people using them to bring destruction and death (something the Sith do).

The Jedi were not wrong to think that the prophecy was about destroying the Sith, because it is them who disturb the balance.

So, the dear Anakin, did not fulfill the prophecy by killing all the Jedi, leaving an "equal number of dark force users and light force users", he fulffilled it when he killed Palpatine and then died, eradicating all the Sith.

“It’s tempting to assume”: someone’s assumption is about to be criticized

The sharpest, best-trained pilots make worse decisions when they're tired or sick or stressed out, so there's two of them. The most dedicated and experienced air traffic controllers garble an instruction over the radio sometimes, so pilots are trained to always repeat clearances back to catch misunderstandings quickly. The best and brightest maintenance mechanic still overlooks a screw or misconnects a wire once or twice in her career, so aircraft systems are built with two or three or four layers of redundancy, and pilots are exhaustively trained to deal with failures safely.