[ExI] flying cars?

[Kelly Anderson]

I can't imagine that the environmentalists are going to let anything
like this happen, since any machine of this sort is going to get worse
mileage than a Hummer... The economics of burning that much fuel just
won't ever make sense except for the very rich, no matter how cheap
the actual device might get. The law of accelerating returns only
applies to the control, not the fuel efficiency. :-)

-Kelly