The Watcher

Every action has a reaction, but for every action and reaction, they need to be observed.

After all, if unobserved particles may or may not exist, in places that cannot be determined, you can't run a universe without someone there to watch every atom to make sure it doesn't vanish suddenly.

So there exists The Watcher, there to observe every atom, every picosecond, to keep them honest.

So, yes, technically you are under observation at all times. But don't worry. They only care about your atoms, they don't give a fuck about you as a person.

Unless you destroy atoms.

Self Entity

The Entity showed me the slight, random change in my past that differentiated this other universe to my own, and then the categorically better life that other version of me was living.

After a few moments, it seemed to not get the reaction it was expecting.

"Doesn't that make you mad? Angry at that other, luckier you?"

"Not really."

The Entity seemed taken aback, so I continued.

"Hey, he got the lucky break via a broken leg, more power to him. Why should I be angry?"

The Entity left, looking for another of us both that felt like it did.