I rather meant this is a potential reductio ad absurdum to my axiom to be analysed. The axiom only comes from intuition anyway, so if its consequences seem intuitively disturbing then it needs looking into.

The device would mean never communicating with another person again, for instance. Would you pay this price for an eternal high? And by definition the lack of such people would not make you sad; indeed it could simulate fake people so there would be no consequence at all to your knowledge. That's why this question is interesting.