And in other ways, technology has produced what no writer ever dreamed of.
"Science fiction writers missed the most salient feature of our modern era: the Internet," McDevitt said.
Ultimately, no matter what humans manage to achieve, science fiction writers will be, by definition, always a step ahead.
And there are some items on the science fiction wish list that experts say could be realized soon.
"One SF prediction that I would like very much to see: Get solar collectors launched to beam energy back home, and get away from fossil fuels," McDevitt suggested.
Colonies on the moon and Mars, space elevators and quantum computers also may be on the horizon, depending on whom you ask.
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