Not at all. We could use some out of the box thinking of Elon’s caliber here on Earth as well. A week ago I was in Moscow. Their subway is truly insane in its scale. It’d be pretty cool if something like this could be built in major US cities as well.
It's already built - in NYC. New York City Subway has twice as many stations as Moscow Metro.
Sure, but I don’t live in NYC, and traffic is terrible where I live, and it’s not economical to improve it without fast, cheap boring technology.
PS; interestingly, Moscow metro has more riders, in spite of a smaller city.