Re: GR -> Black Holes Can't Form...

From: Roland Paterson-Jones (roland_at_rolandpj.com)
Date: 01/31/05 

Date: Mon, 31 Jan 2005 20:00:26 +0200

Dirk Van de moortel wrote:
> "Roland Paterson-Jones" <roland@rolandpj.com> wrote in message news:ctlktv$812$1@ctb-nnrp2.saix.net...
>
>>Dirk Van de moortel wrote:

>>>
>>>We infer - indirectly - the presence of a black hole by what
>>>it does to the surrounding matter that is outside the event
>>>horizon. Does it really exist? Yes, if we define it this way.
>>
>>I think you might be closest to understanding where I'm coming from. But
>>my thesis is stronger than yours. My thesis is that all matter has to be
>>outside the event horizon, as a direct result of time dilation of GR.
>>
>>My leading question to you is then:
>>
>>How did the matter inside the event horizon get there?
>
>
> If you agree that an observer who is falling in with the matter,
> has no problem establishing the formation or the existence of
> the black hole, then there's no problem I would say.
>
>
>> From our perspective outside the event horizon matter would have taken
>>an infinite time to cross the event horizon (due to time dilation as a
>>result of GR).
>
>
> That's our perspective. The matter that is part of the black
> hole doesn't care about us, just like the sound that is following
> your supersonic plane doesn't care about you.

I agree entirely. Should we be looking for back holes from earth
however? If they don't exist from our perspective, then what's the point?

On the other hand, if we are looking for time-dilation-frozen nascent
not-yet black holes from earth, then, yes there is maybe a point. But
everyone seems to believe that there is an event horizon in our perspective.

Anyhow, I'm still not sure that anyone understands my thesis, so I have
started a new thread that will take things a little more slowly.

Thanks for the help

> Perhaps you could have a look at Taylor and Wheeler's
> http://www.eftaylor.com/general.html
> There are some sample chapters
> http://www.eftaylor.com/download.html#general_relativity

Thanks
Will do
Roland

Relevant Pages

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