What Does Gravity Have To Do WithThe Expanding Universe?

[Anomalocaris]

This..

Though I can how understand someone with a passing familiarity with cosmology might misunderstand what the observational evidence tells us.

The observational evidence can hardly begin to help us understand the universe.  If we could pinpoint the center of the universe from which it all began to expand, we'd understand a lot more. But shifting time/space has obliterated the center and ergo the boundary.

This is difficult to visualize but understanding it is absolutely necessary to understand the prevailing view of the Big Bang. It is not just that a center could no longer be pin pointed.  There never was any center as matter of fundamental principle because every single point in the entire universe is by fundamental principle indistinguishable from any other point regardless of what meaningful criteria you might apply to try to pick one out as a center.

[polymath257]

This..

Though I can how understand someone with a passing familiarity with cosmology might misunderstand what the observational evidence tells us.

The observational evidence can hardly begin to help us understand the universe.  If we could pinpoint the center of the universe from which it all began to expand, we'd understand a lot more. But shifting time/space has obliterated the center and ergo the boundary.

In the BB model, there is no 'center' to the expansion. Every point in space looks like every other  space at that time. There is no boundary to space, no center to the expansion, nothing at all like that.

So, for example, from the point of view of the Milky Way galaxy (ours), every other galaxy far enough away (so that gravitational effects are irrelevant) is moving away from us at a rate that doubles as we go double the distance away. So, from our viewpoint, it looks like we are the center.

But if you go to another galaxy half a billion light years away and calculate what would be visible from *that* galaxy, you find that every galaxy except for those very close is moving away at a rate that doubles when you double the distance.

This is true for *every* galaxy and is part of the reason we say that space is homogeneous. Every place will look out on the universe and see basically the same picture: other galaxies are moving away at speeds that double when you double the distance away.

So, it isn't that we cannot determine the center. It is literally that the model has no center and that model fits the evidence we see. So thebelief is that there *is* and *has never been* a center ot the expansion.

[Edwardo Piet]

Gravity is like curry. Space is like chicken, if there is more chicken and less curry as in more space and less gravity then quantum fluctuations would vary on the molecular level and cause issues on entropy. The only way entropy wouldn't rise is by balancing the "chicken" and "curry" which obviously by effect affect the forever expanding of the universe aka "spices". So what do we understand from this?I have no idea what I'm talking about

So I ate gravity 5 days in a row and shat it out of my quantum bottom?! The hell?!