These people are making reasonable hypotheses based on our scientific knowledge of quantum limitations and virtual machines. Same thing we are doing when we search for evidence of collisions with other (unobservable) bubble universes in the cosmic background. Since these hypotheses result in testable evidence, they are science not theology. You are the one introducing speculative straw-men; we can look for evidence of other bubble universes without speculating about whether Jeebus lived there. Same goes for virtual machines.
