Humphreys' cosmology: the two possibilities

First, the premises:

(a) we see the universe expanding uniformly all around us; and
(b) no side appears to be 'thicker' [galaxies-wise]; i.e., on a large scale, the cosmos looks the same everywhere.

Possibility No. 1: we are not really in a special place and it just so happened that the cosmos is isotropic and homogeneous.

Possibility No. 2: we are actually at or near the center of the cosmos.

If we imagine galaxies [or more accurately, galactic clusters] as points on a sphere, the two possibilities are as illustrated above by D. Russell Humphreys.

Interestingly, observationally we wouldn't be able to distinguish one from the other.

The deeper implication however is, if the mass of the universe is in just a part of it, then a gravity well is currently in place.

Gravitational time dilation would cause time to run slower at the lower portion of the well.

These in brief are the pieces that comprise Humphreys' 'white hole' cosmology.

More on Humphreys' cosmology on the next post/s.

[Images above are from Starlight and Time. It is believed that the use of a limited number of web-resolution screenshots for identification and critical commentary qualifies as fair use under United States copyright law.]

Related post: Gravitational time dilation
Related post: Humphreys on Hawking's astronaut and time dilation
Related post: Is there an edge to the cosmos?

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