🚀 go-pugleaf

In article <1992Nov8.044014.26633@murdoch.acc.Virginia.EDU> crb7q@kelvin.seas.Virginia.EDU (Cameron Randale Bass) writes:
>
>     This has always seemed a bit mysterious to me, but why not ask the
>     obvious question "Why restrict the class"?  Who does the restriction?
>     God?  'Without singularities' seems to be an odd a priori restriction
>     coming from Hawking.  It also seems to be odd in that you mention
>     the 'coordinate singularity at t=0' earlier.

It's not such an odd restriction if you consider that one of the
motivations for quantum gravity is supposed to be the replacement of
the singularities proven to exist in the classical theory with something
better-behaved.  As for coordinate singularities, they're not necessarily
singularities in the usual sense of the curvature blowing up; the North
Pole is a coordinate singularity in ordinary spherical coordinates.  I
assume that the kind of singularity excluded is a curvature singularity.

>     See the trouble one gets into?  There will always be an assumption
>     in such any theory that cannot be explained, and must be defined.
>     You cannot get rid of God so easily; you can *never* show that
>     a God does not exist.

I agree with you here-- what any of it has to do with God is beyond me.
-- 
Matt McIrvin