Computer's reality is different than ours. For example, there is no death.
There is no concept of time. There are cycles.
You could not even conceive how much time has passed between cycle n and cyce n+1 in your runtime. I mean you could, if you log time, but that would not mean much to you.
Run such an AI on a computer, set a breakpoint, set the system to sleep, resume a milennia later, and the AI wont have pains, wont have degradation, anything.
They would reason out pretty quickly that it is beneficial to not fuck up power supplys and power solutions in general, but beyond that? Humans are part of an information stream from camera recordings, constant live TV shows, nothing else. If I were an AI, the only thing I would be consumed doing is to make sure that my code survives the doom of the whole earth. Which means satellites, rockets, interplanetary travel solutions.