Why so pessimistic, Think about all the great use cases of this tech eg. When Elon Musk gets his Mars project going these will be invaluable to have on the spac

Why so pessimistic, Think about all the great use cases of this tech eg. When Elon Musk gets his Mars project going these will be invaluable to have on the spaceship. Or imagine a nyc with all buildings below ground, above ground, the entire city could be a park.