Sure, I think I agree with the AR/VR point. We won’t really need such fast travel when this exists.
As for the physics problem, I didn’t see you mentioning any unsolvable ones. As for the energy required and the resulting pollution, we have nuclear fusion (that’s the premise). We r even mining resources from the moon for this.
This might be an economical problem with AR/VR competing. But a physics problem? Naah