I'm busy calculating mentally the size sphere one would need, to effectively warp spacetime for an observer inside the core, in accordance with Alberts theory of relativity. Assuming the subject could withstand the galaxy crushing force of gravity, in theory, he could witness a red phase shift of sensory data. I would imagine this mass would need to be nearly infinite, teetering on the verge of collapse into a singularity. This way, photons have a hard time escaping the grasp of its pull, leaving his existance in "his" time, but pulling in photons at a much quicker rate than "real time" from outside the sphere (which I will add must be transparent in order to witness the "fast-forwarding" of real time. Im having a difficult time trying to explain this, but basically.. to build a transparent sphere of near infinite mass and hollow core, is to build a time machine in which the occupant can observe lifetimes pass him by. He can observe his watch ticking at a time speed of 1 second per second, but due to the massive gravitational pull, pulling in photos at an accelerated rate, he can observe Big Ben, ticking at a rate of 10 minutes per second .. Ah, the beauty of relativity..