From: gerry@bindweed.com   
      
   In article <84041e74-d5a7-4749-b32e-57d3a30ad7f1@googlegroups.com>,   
   lawrence.crowell@jeffersonchristianacademy.org says...   
   >   
   > On Sunday, January 8, 2017 at 4:14:09 PM UTC-6, toadast...@gmail.com wrote:   
   > > 170108   
   > >   
   > > If I were in a black hole the size of the observable   
   > > universe and it was not expanding but evaporating,   
   > > would my acceleration towards a singularity be easily   
   > > distinguishable from my being in an expanding space   
   > > filled homogeneously and isotropically with all this   
   > > stuff we see?   
   > >   
   > > If there were a "firewall" at the inner horizon, would   
   > > it look like the CMB?   
   > >   
   > > Thanks,   
   > > mark jonathan horn   
   >   
   > If we were in a black hole with mass M ~ 10^{53}kg of mass   
   > the horizon would be around where the cosmological horizon   
   > is. We might locally find conditions not too different from   
   > what we now see. However, black holes have a Weyl curvature   
   > tensor components. These are ~ GM/c^2r^3 and positive along the   
   > radial direction and negative along distances perpendicular   
   > to the radius. This means there would be one direction where   
   > galaxies are red shifted and a planar set of directions   
   > where galaxies are blue shifted. The large scale structure   
   > of the universe would be very different.   
      
   Also, both the GR Schwarzschild solution of GR and the 'firewall'   
   concept apply only to stable, well-developed black holes.  It doesn't   
   seem possible for any life initially within the boundaries of such a   
   black hole to survive until stable conditions are reached.   
      
   An observer can fall into a large GR black hole and survive inside for a   
   time, but this results in the scenario described above - anything that   
   fell in earlier - i.e. anything lying in the direction of the   
   singularity - will be red-shifted.   
      
   And you can't really fall into a 'firewall' black hole - you will be   
   destroyed in the region of the horizon.  So this is a different scenario   
   entirely.  Firewall and Schwarzschild black hole models look similar   
   from the outside, but are completely different inside.   
      
   - Gerry Quinn   
      
      
      
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