No, the charge capacity of our holons guarantees they can run for far longer than we'd ever be able to stay in them, unless you decide you don't care about having a body anymore. They did upgrade one unit's power supply significantly at that point but I don't know the technical details.

[ Time travel does sound pretty unbelievable but they're literally in another universe right now and others from their worlds can be from different times. Kazu can accept that it's possible at this point. ]

Smart AI? Are there also stupid AI?