What if you just paid a bunch of actors to run a city for a few days.
I want to run a convenience store

>>40633498
>ocean krust is 280mil y.o.
>land krust is 4bn y.o.
>earth was water ball in beginning with 8km oceans
>land came to surface when expanding
>land pieces fit all together
>even the curvature (!) would suggest earth was about 70% of current size

sounds right to me