10 deepest mines in the world.
https://www.mining-technology.com/features/feature-top-ten-deepest-mines-world-south-africa/
Deepest is at 2.39 miles now, heading for 2.65 miles.
The "South Deep" mine has been fully mechanized since 2008.
The mine in Utah is down 1.6 miles, heading for 1.9
And that's what is permitted and admitted to. What can the gov actually do?
Average global ocean depth?
2.32 miles.
Obviously, admittedly, the military industrial complex hides the leaps of technology flying in the barren sky above us. Would they not do the same below us, especially when there are fortunes in precious metals to extract unseen?