8 Are underground cities 🌃 the future ?? (youtu.be) posted 304 days ago by GradErsReal 304 days ago by GradErsReal +9 / -1 9 comments share 9 comments share save hide report block hide replies
not really. DUMBs are done with laser arrays that can melt the rock into lava which is then moved wherever.
even if one doesn't believe in DUMB's, the JPL patent for the laser array can be verified.