As any “Star Trek” fan will tell you, the reason why this sci-fi world has endured for so long is because it illustrates an optimistic future, with tech starring as a power for good.  In fact, famed Xprize founder, author, tech investor, motivational speaker, and longevity guru Peter Diamandis has just launched a new $3.5 million Future Vision Xprize to encourage more such optimistic sci-fi worlds to come to our screens.  He credits his whole fabulous career to watching “Star Trek” as a child growing up.  “’Star Trek’ offered a hopeful vision of the future, right? It was humans/humanity and technology in collaboration,” Diamandis told TechCrunch. “I truly credit it with everything that I since achieved, because it motivated me to want to go and create and manifest that future.”  He finds that sci-fi movies and TV shows these days are largely fixated on calamity. “Every science-fiction movie I was seeing painted this dystopian vision of the future.…