Too bad this visionary lived, and died, in the wrong century. Until the beginning of the 20th century, scientists were still quite unanimous in their pronouncement that human flight was impossible.
Anyone who tried building an airplane would be considered a fool. That's why it is so startling to consider that Roger Bacon made his predictions in the 13th century. Leonardo da Vinci wouldn't be born for another 200 years.2
Everything Bacon described has come true, but, at the time he was writing, it was obviously more an act of faith than of logic. According to Arthur C. Clarke, in Profiles of the Future, "Here, we have yet another example of the triumph of the imagination over hard, cold facts."3
