While that is an option. Our size is hardly top 1000000 of our problems when it comes to building a mega size clone of earth environment, including capability to defend and attack foreign invaders.

First we most work together and many countries people are not able to corporate or somehow due to their agenda.

Now, one interesting if we actually got smaller would might indeed turn around our bad behavior. Currently we are longer, fatter with bigger house, bigger cars and so forth. Even our smartphones are bigger than ever.

If we would decrease our length and fatness with 50 percent we would indeed need less of everything.