As Jules Verne expressed it about H.G. Wells in "Invasion of the Sea":

"We do not proceed in the same manner. It occurs to me that his stories do not repose on very scientific bases. . . I make use of physics. He invents. I go to the moon in a cannonball discharged from a cannon. Here there is no invention. He goes to the Mars [sic] in an airship which he constructs of a metal which does away with the law of gravitation. . . But show me this metal. Let him produce it."

Why do I blog this? both Vernes and Wells were great futurists hidden under their novelist stance. I found that quote interesting and it exemplified the different way they proceeded.