So big bang is right?

Big bangs happen all the time, it is a drawn out process likely managed by a few giant quasars. In the baryon world we walk backwards but neglect that there are many more unused paths than ewe realize. Like, you need to do Einstein some five times, then you can compute the imbalance, determine flow and vacuum decay for each  surface in time meter units.. There should be a limit to the number of ways the vacuum can contort.

Plank and light?
Light needs three steps to correct a spot, so Plank is and inverse of light corrected for Boltzmand which is a generalized formula of Shannon Nyquist. So the universe is pick three of the five dimensions and have a go.  15 varieties, narrow down by equivalent universes.  Relative to our mother quasar we are likely off in a dimension. The error is located in two modes of curvature in free space. So we have our 3D, and we have a fix on mother quasar by successive applications of Einstein.
When we think space is expanding it is just mother quasar breathing.  Looking out across a center in 3D is really looking out cross a conic of vacuum in motion. But quasars are well separated on a five dimensional sphere, each dot in the sphere well be seem to us an expansion.
Decay rate of the proton the inverse of the N to the mth power, inverted. They do not evaporate  and die out, they are consumed in another vacuum dimension, so out the farthest we can see is the vacuum decay rate. I think five is the limit in available dimensions. Plank and pals make that three steps always, so the dimensions will exchange vacuum. They will always have deviation sets orthogonal. It is a background flow or two dimensions I think, and we can likely just estimate a cosmopology constant, but there will be six or seen to try.  We we see a quasar, it is not us, not yet, but its relative separation will need to be decoded. It is just taking your set of Einteins and taking combinatorials, three at a time. You should get some center if you can get a look at four of five quasars. It is like looking for the Higgs in reverse.