numbers of incarnations?

[Etude in B Minor]

The thought of having to do another 25,000 years in 3D is somewhat depressing (but what ever will be, will be for the best, of course). Part of this is the idea of having to start over at caveman level. Is that how it works? Another slow crawl back up to civilization?

Then I thought of the numbers. Right now there are about 6 billion souls incarnated (assuming no zombies or automatons) and apparently a long line of souls wishing to incarnate (maybe these are mostly souls recently promoted from 2D and thus not ready to graduate to 4D). Until the past couple of hundred years, however, the population has been much lower (about 250million at 1 AD, and about 5million at 10,000BC). Assuming an average lifetime of 40 years (which would give a slow growth) for the time before 1800AD, it would take maybe about 5000 years to allow 6 billion souls to incarnate at least once each. So, in 25,000 years a soul could work in just 5 incarnations, plus maybe 3 or 4 in the short time of high civilization just before harvest (assuming that is the usual sequence of events). So it would seem there would be a lot of time spent in the inner-planes (Time-space), which maybe wouldn't be caveman level.

Edgar Cayce said that many of the souls incarnating now were from Atlantis and had few if any incarnations in the low-civilization interim. So perhaps it would be the same for those alive now who do not graduate to 4D. They will go to another 3D world, but will not incarnate until the civilization on that world reaches a sufficiently high level for them to be presented with the lessons/challenges that are appropriate for their relatively advanced standing. I assume that the early part of 3D is populated by souls recently promoted from 2D and a few wanderers (from 3D) to help move things along.