[ExI] Who's stealing our universe?

[Lee Corbin]

Damien B writes

> At 06:03 PM 9/25/2008 -0700, Lee wrote:
> 
>>if the "vast entities" affect visible entities, then light from them
>>should be able to get here, and they too would be part of
>>the visible universe.
> 
> I was assuming that the alleged weird lumps of stuff might to be 
> invisible, being so massively redshifted or built out of dark matter.

Yes, but photons are photons, whatever wavelength. As yet,
we don't know of conditions that would forbid the normal
tranmission of light, but I should have tried to be more general.

By the way, I'm finding it damn hard to discover anything on
light that gets into the nuances of what I was posting about.
Everywhere it's the same old "the visible universe is 13.7
billion light years in radius, because that's all the time there
was for light to move". When I've a bit more time, I'll try
looking under "horizon problem", or something, instead of
the pretty ambiguous "visible universe". The world according
to Guth and Tegmark isn't so simple; I'm still basing everything
on those two.

Max Tegmark, Scientific American, April 2003, or
    http://it.arXiv.org/abs/astro-ph/0302131

if it's still there (Tegmark has newer versions, probably).

Lee