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

[Dennis May]

The Avantguardian wrote:
 
> Actually I have done some calculations and there is 
> indeed a "finest-grained scale" for vacuum. A photon
> that has a frequency greater than or equal to 
> 5.223 * 10^42 Hz has a wavelength less than its own 
> schwarzchild radius. Therefore it will form a black 
> hole causally separating itself from the universe. 
 
This calculation assumes the correctness of General
Relativity which cannot predict the velocity profiles
of spiral galaxies even after dark matter was added to
fix it.  [see previous post on this]  It would seem
General Relativity is not so general.
 
Dennis May
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