3rd density Earth will remain as it is, right?

[zenmaster]

As you go up in the densities, the time/space component grows larger while the space/time component becomes smaller

What makes you say that?

...and exactly what do you mean "larger" and "smaller"?

It is my understanding that as one evolves through the higher densities the tangible framework for illusion (i.e. space/time) becomes less and less necessary. The increase in catalytic action, which is what space/time provides becomes less necessary for progression. As spiritual mass becomes greater all becomes more and more coalesced inwards. The component I'm referring to is an experiential component. The orientation of the consciousness turns predominately inwards. The outer illusion becomes more and more transcended.

I think it more the case that in 3rd density, consciousness evolves to make time/space more balanced with space/time. In 3rd density there is an imbalance with the lopsided bias towards space/time which does not exist in the higher densities. Remember, space and time are the same thing ultimately - the balance is in their unity which is the evolutionary progression.

A higher density subsumes the lower, where the lower is still embedded in the higher. So you essentially have a s/t and t/s component being "controlled" for each individual s/t and t/s experience.

i.e. 1D is simply t/s and s/t, 2D "adds" t/s s/t for t/s and t/s s/t for s/t. And so on up the densities.