Space/time is not just a physical plain but it takes a metaphysysical form as well. So this concludes(to me) that if one plain fails to exist any longer that space/time would crash and laps into itself cousing a mass distruction and/or distortion in space time itself cousing risidual effects on the universe and all being as we know it...right? Think about it.
HehE.. He may be right! This may not be the ground-state of the universe . space-time may break a super-symmetry and condense/freeze into a more stable form...