For some reason, Popular Science just could not accept that cars, trains and airplanes were actually viable methods of travel. They looked at the stable, speedy craft of the day and said "Surely these are flashes in the pan. The future is ONE GIANT WHEEL!" And then they laughed and chugged laudanum until they lapsed into a Science Coma.
And we get the appeal, really, we do: But it just seems cruel to use your Inverse Penny-Farthing of Death to mow down those tiny little dudes with their adorable toy cannons. Pick on somebody your own size, Science.
Sometimes he puts playing cards in between the spokes.
This is how much Popular Science was willing to sacrifice for our uni-wheel-based future: They were totally OK with being built into their vehicles permanently, with no possible means of exit.
Men in Black III is looking at a lawsuit from the past future.