Hi
The thought that you have been holding back so far in your criticism is challenging. I hope you are not in fear of offending me - I thrive on criticism. You cannot reject answers you do not like out of hand. The Schwarzschild solution to Einstein's field equation is a solution for non-rotating mass throughout all space. You can no more claim is does not work inside a black hole than you can claim it does not work in your back yard. Oppenheimer/Sneider's paper (1938) claimed that you cannot extend the solution through the event horizon because of the nature of the singularity there. This leads one to conclude that the equivalence principle is valid in all space and in all coordinate systems with the exception of Schwarzschild coordinates. I find this so unlikely as to be ridiculous, but for the doubter, I provide a proof that the singularity in Schwarzschild coordinates will remain in any coordinates as the metric function is an invariant function. An infinity in one coordinate system is infinite in any coordinate system.
I believe the same woolly thinking invades your attempt to limit the scope of Birkhoff's theorem to a particular region of space. They are after all closely related.
You seem to think the conclusions I eventually reach are preposterous. The existing solutions lead to(among others) wormholes, time travel, baby universes, multiple realities x, .....
I think I may be on safer ground, so far - not nearly so ridiculous.
Most importantly, and to my mind, conclusively, Einstein's general theory of gravitation is never broken, by my proposal. Does anyone else have a view?
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Dave Proffitt
http://blackholeinside.co.uk