You got it in one, Sir Wizard.
Somebody just didn't take a long enuf chaw. Didn't 'stablish nuttin- proposed a hypothetical 'if' followed by a logical 'then'. Space curvin' in on itself - somebody dun be confusin 'space' (ie 3D space) and 'universe'. It's kinda like arguin' that infinte space curves in on itself thus having no beginning nor end, yet still infinite, but that there are other infinte 3d-spaces possible due to that curvature. Just a tad bit of circular reasoning goin' on there. (pardon the parallax)
Think that's called 'havin' yer cake and eatin' it too.' Even hard core trekkies might have a few 'continuity issues' with that many violations of the space-time continuum. (tfic - tongue firmly in cheek).

Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good ...