#7.  The World’s Brightest Minds Aren’t In A Hurry

Elon Musk, arguably the greatest inventor and engineer alive, has made clear in several interviews that cars of flight simply aren’t feasible, especially not anytime soon. Jeff Bezos of Amazon is preoccupied with delivering products directly to consumers using drones, among other business-related projects. No other innovators of this caliber are ready to bring flying forms of transportation to society. Maybe one day!