Zero is pretty limited, yes. Also, there will never be a Martian colony. Ever. Put that fantasy to rest.
True. Nor are we "going to the stars". What a load of fantastical sci-fi rubbish. Generations of moron children raised on cardboard television sets depicting swashbuckling interstellar captains screwing green alien chicks. Grow up already.
"A car is just a big purse on wheels." -- Johanna Reynolds