« This result means that it is possible to have _something_ in this range » What would it even mean for it not to be possible? Two neutron stars of appropriate

« This result means that it is possible to have _something_ in this range » What would it even mean for it not to be possible? Two neutron stars of appropriate size collide -- you end up with something. I'm sure the physics are interesting in this range, but I have a hard time understanding how it could just not be possible. (Rare, yes.)