If Y is sufficiently powerful, it may be able to deduce the laws of physics and the initial conditions of the universe, and then obtain X’s source code by simulating the universe up to when X is created.
Quantum mechanics seems to be pretty clear that true random number generators are available, and probably happen naturally. I don’t understand why you consider that scenario probable enough to be worth talking about.
Quantum mechanics seems to be pretty clear that true random number generators are available, and probably happen naturally. I don’t understand why you consider that scenario probable enough to be worth talking about.