Imagine for a moment two societies living side by side. One has discovered and uses the wheel effectively -- a technology that makes life easier for workers and boosts the economy for everyone. Prosperity reigns. The society next door is well aware of the wheel and watches as its neighbours move inexorably ahead -- wealthier, more efficient, healthier and with more leisure time for cultural activities. But it is not those who do the work in this society who reject the wheel -- it is the governing elite, the priests, the official advisers and scribes who have incorporated a moral objection to the wheel into the state religion. Use of the wheel is thus proscribed by faith, not reason. All practical arguments in its favour are rendered useless.
The Harper government has spent over half a billion dollars on public service ads!
Wait, the Harper government doesn't believe in public service. What gives?
OK, so we've figured out how to propel a small device through space at 60,000 kilometres an hour for 10 years, and then land it on a comet 6 billion kilometers away.
But using a solar-powered car to drive, say, the 60 kilometres between Toronto and Whitby? No way. Get real.
For that matter, humans first operated a solar-powered car on the moon almost 40 years ago. But the trip to Whitby still seems too challenging.