[ExI] Problem with time travel WAS Faster than light??

[Dennis May]

Spike wrote:
 > Indeed sir?  The velocity profiles of spirals do not rely in any way on 
> General Relativity, or even Special Relativity.  Good old Isaac Newton 
> covers it all.  Granted, the distributions of dark matter required to explain 
> those velocity profiles are a puzzling head scratcher.  I will be damned if 
> I can figure out how matter could distribute itself that way.
 
OK neither General Relativity nor Newtonian gravity provide a correct
answer even with dark matter.  Again this means General Relativity
is not a general theory.
 
Dennis May
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