One day given that we have enough resources to identify these "Random Patterns", they won't be "Random" anymore.
I'll only respond to this part with
Heisenberg's uncertainty principle:
the position and the velocity of an object cannot both be measured exactly, at the same time, even in theory. The very concepts of exact position and exact velocity together, in fact, have no meaning in nature.
If you can't know speed and velocity of a particle exactly, you can't predict an impact, which means you can never have enough resources to identify this random event.
I like the use of
cosmic microwave background radiation power spectrum as a random bit generator: there's no way you can ever predict the radiation, and if you would try to measure it outside the random generator, all you accomplish is changing the random output.