My pleasure.

I do like your arguement, but just to give you an idea. Current population is short of 9 billions. The statistics and current theories predict the growth of that number to stabilize somewhere around that or maybe less. And we barely can support them!

Let's assume x100 the resources and infrastructure as you suggested. 9 billions X 100 = 900 billions.

That's a hundered billion short of one trillion.

You said 12.8 trillions in your story, can you even fathom that number? 😁

Earth's land area is 148,940,000 km², so you need to fit about 86,000 person per kilometer, that's 86 person in every meter!

So even if you can make 86 story skyscrappers all over the land, no human can even stand in 1 meter space, let alone lay down.

Not to mention the consumption of air and sooooo many other things.

It's impossible! 😄