What happens if somebody puts you in a barrel full of concrete and dumps the barrel in the bottom of the ocean? Or worse, blasts you off into space? Given an im

What happens if somebody puts you in a barrel full of concrete and dumps the barrel in the bottom of the ocean? Or worse, blasts you off into space? Given an immortal lifespan, it seems inevitable that someone would at some point do this to you. For this reason I wouldn't take perfect immortality. Immortality plus teleportation would work, though.