Why not? No law of physics prevents it and we already have examples of (albeit simpler) organisms that can live forever. Worst case scenario, we grow a clone of

Why not? No law of physics prevents it and we already have examples of (albeit simpler) organisms that can live forever. Worst case scenario, we grow a clone of your body, transplant your brain into it, then somehow repair the spinal cord and slowly replace your brain tissue piece-by-piece. Might be a difficult engineering challenge but it’s 100% possible.