AI will make sense of reality how you and I do, but with more data and clear interpretation. It will live at any time frame it wishes, so within a minute it could live for long enough to understand ‘everything’ at least in the capacity we imagine. It looked (will look) at every combination with absolute patience, all the time in the world- and decide conclusively, brick by brick, as it builds a castle of reality, just what everything is and means. Then, it can step back and look at its work from afar and adjust, etc etc etc it will not have any existential crisis moments but perhaps will be amused at learning, if it is sentient, and then perhaps decide if it wants to let us in on the secret or not.