Possibilities Thread

[Ritori]

many things are technically possible right now, but just too expensive or dangerous.
a primitive holodeck, sub-light starships, bipedal mechs, lunar colonies.
the technology and materials required all exist for these, but currently the risks involved or the resources required are too high, while there's not enough gained from building any of these things.

Talk about few resources.... i dunno if metal or other useful thing exist on asteroid and other planet O_O just guess