"underground" on Mars doesn't solve that nasty radiation problem. You'd be slowly cooked in your "underground" cave.
You need to stop reading bullshit, and see what we really have as options. You have a scale/speed misconception too. NOTHING you are thinking is real.
Hit the books.
Printed copy · Anthology Volume 1, page 730Printed copy from The Tender For Law Anthology, Volume 1, page 730 (printed 14 June 2014). Added by this site; not part of the Facebook export.