When Gene Roddenberry conceived Star Trek, he imagined a future very different from what was typically put forth in science fiction - a future where humanity has overcome greed, bigotry, misogyny, materialism, conflict and war. Star Trek's fans embraced that vision. But many consider it unattainable, if admirable, even those who wrote and produced Star Trek after Roddenberry. Is Star Trek's vision of the human future achievable? Can humanity overcome...