Today, on the anniversary of Gene Roddenberry's passing, StarTrek.com has a thoughtful tribute to the legacy of Star Trek's creator:
… with Star Trek he created an iconic mythology which has succeeded in providing popular culture with a common reference point for all things futuristic and achievable. ("Achievable" being what distinguishes Star Trek from Star Wars.) Because Star Trek has become so firmly planted in our collective consciousness, far-reaching ideas can more easily bubble to the surface and gain acceptance, as the optimists among us push forward to realize that vision of the future. Replicators, tricorders, bio-beds, cloaking fields, transporters, and even warp drive are all concepts being pursued today by scientists and innovators, even when overwhelming conventional wisdom would dismiss them.
The article goes on to posit that humanity could realize its great potential if we would set our sights on the stars and not on petty terrestrial squabbles over land and oil. I suppose that's what makes Star Trek science fiction…