... and, whatever it may mean among scientists, there are too many other subcultures that say "unobtainium" to mean anything both very desirable and very expensive. Heck, I'm pretty sure it's what Campy parts used to be made of, back in the day. Most everyone working on the movie must've used the term regarding auto parts, motorcycle parts, bicycle parts, and probably parts of half the rigging they use on movie sets. I can't believe they left it in. The first time the corporate guy referred to it, I thought he was going to get around to saying what it was really called...