If this actually happened, would the 'I' that replaced you be any wiser. How do you know this hasn't happened to you already? Maybe multiple times per second?

> It says "something" survived the utter complete destruction of the physical body and was "put back in it" once it was reassembled. If "it" survived the complete physical destruction of the body, it must be somewhere else, detached from the body.

The information of how to put your body and mind back must have survived somewhere, in the alien mind for example or the machine they used. But the information would still be in (a medium in) this universe and bound to this universe physical laws. I would say this is still a monist position.

A true dualist believes that consciousness survives outside of a medium in this universe.