A New Flatness Problem Identified

[Dubbelosix]

I have uncovered a discrepancy in the geometry assumptions of spacetime. I have uncovered that

 

 

A) The models we are using are inconsistent

 

and/or

 

B ) The assumption of spacetime being flat is wrong.

 

 

 

Most will have heard of the flatness problem, that is, ''why is the universe so flat?'' If inflation really happened, or some other rapid expansion phase, then this answers it to a degree. But there are arguments that do exist that could question whether space is flat at all.

 

The density parameter from the Friedmann equations measures the ratio of the observed vacuum density to the critical density. Only when these two quantities are [exactly] the same does the Friedmann equation allow a geometry which would fit Euclidean flat spacetime.

 

This exact parameter when both terms are equal, would serve what we see in the vast cosmos, since the universe appears to be spatially flat and homogeneous. Or does it? There is an inconsistency which may hint that the large scale homogeneity could be an illusion.

 

It turns out afterall, that the observed being equal to the critical density doesn't match observation at all. The critical energy (a tool used to explain possible collapse models) is worked out to be five atoms of hydrogen per cubic metre of space. The actual observed density of the matter in the universe, is somewhere between 0.2-0.25 atoms per cubic metre.

 

Something isn't consistent here. For flat space truly to exist, requires the observed and the critical densities to be exactly equal, but calculation of the actual density of the vacuum is no where near the estimate required to satisfy a flat spacetime model.

 

 

Yes... dark matter could explain the discrepancy in theory. A more accurate calculation will need to try and prove that, but personally speaking, I find dark matter as the solution, unsatisfactory, for a number of reasons.

Edited July 21, 2017 by Dubbelosix