The Filksong - now a Video.
At SF Conventions and other places, peculiar people, SF Fans and Space Cadets, gather round to sing songs of longing, fantasy, low humour, or all three. "Banned from Argo" comes to mind.
Then they leave, and go about their humdrum lives. Some as clerks, some as satellite technicians, some as truck drivers, some as researchers on quantum teleportation.
Some do more than dream, you see. And some of the clerks are gaining qualifications part-time. Some of the truck-drivers too, if they're not transporting booster components. I'm not saying everyone, if they want something badly enough, can get it. But more can than you think, and the first step is to try, with all your heart and soul.