Below is a copy of a comment, which changed my thinking, and
you should see the video it was commented on to get the context:
https://www.youtube.com/watch?v=wwSzpaTHyS8
There is no such thing as "Random", there's "Sudo Quantum-Random" but never real-random: Even your computer and games use so-called "Sudo-Random" where basically the micro-second of the clock is converted using math and number-table, hence it will look Random to users; Said "Sudo-Random" takes advantage of the fact that you are blind to micro-seconds, just like this video takes advantage of the fact that you are blind to Quantum sized things.
What about Time travel? Time is a unit which humans use to calculate the movements, like the Earth rotates one round per 24 hours.
But the only way to "travel" back in time would be to have knowledge of the locations of each and every Atom-particle (not just Atom), and have power to move said particles back where they were one-by-one.
Note said one-by-one: knowledge is one thing, but you can not, nor can World super-power's technolgy even move a single Atom without damaging other Atoms' placement.
There is no magic button which gives you said knowledge and power - the universe does not care about your made-up "units", anyone saying "I want to travel into time" is same to me as saying "I want to travel into centi-meters".