....

 

Including phase 1 is optimal,

 

but if you think about it,

 

Phase 2-3-4,

 

they can be automated by robots.

 

 

Or remote controlled from here on Earth.

 

 

But including phase 1 with people,

 

will be a whole lot faster.

 

 

Have robots build the city?

 

Then have people go in there?

 

 

 

It is a process for machines after all.

 

(Phase 2-3-4) Even 1, but that is for people.