[saltcured]

Even if we could separate your mind from your body and run it on an immortal computer (or rather succession of computers), I don't think we have any evidence to suggest that making a mind immortal is easier than making immortal tissues and organs.

It's not just making the machine immortal or serviceable. You also need to make the program robust enough to run continuously without crash/reset conditions or other pathological bugs. But, the techniques we understand to engineer "immortal" programs are at odds with the complexity of a real mind, in much the same way as our techniques for engineering machines are at odds with real biology. I.e. it isn't really preserving a real mind if we have to strip away the stateful learning and memory, the moods and emotions, and the inherent potential for bouts of irrationality or even psychosis.

Finally, to "solve aging" for one organism or one mind just raises more questions which are equally as hard. What is an immortal society or civilization? How do new people ever relate to their immortal forebears or participate on equal footing in an economy where some have literally had forever to gather wealth and power? Or does sexual reproduction cease in a future with backup-restore options? Immortality means solving all these levels, otherwise you just replace illness and senescence with accident and violence as the common cause of death...