If someone had told the crowd watching the bicycle mechanics' efforts at Kittyhawk not that long ago that within 60 or so years we would be orbiting the planet in space and not long after walking on the moon, most would have said that was never likely, either.
If you told the crowd watching the Concorde's first flight in 1969 that less than 20 would be built and by 2003 we would be back to subsonic jetliners they would have told you you were dreaming as well.
