I dont think it would ever be possible due to blood cells and brain matter. Unless the whole shape of our humans were engulfed in a wave of sorts to protect every cell. Your skin alone would break apart, hones dislocate this is due to gravity shift change its equivalent to dropping from 10.000 feet or 5000 feet. Both have different effects on your body. Gravity would be a big issue for teleportation as this is all fantasy.