OK, I THINK I’ve figured out why Obi-Wan is able to vanish when Vader strikes him in Episode IV, yet no other Jedi has been able to do so.
In Episode II, Yoda points out that the Jedi are losing their ability to use the force. Keep in mind that there’s about 9,000 Jedi (or so I’ve read) active by the clone wars, plus about 200 in the temple on Coruscant. My suspicion is that the Force is being “stretched” too much among so many Jedi.
Fans of the Expanded Universe will recall that 1,000 years before, Darth Bane killed all the other Sith because, in his opinion, the Dark Side had spread too thin among so many. The Sith were no longer true warriors, but a bunch of squabbling generals driving themselves to extinction. In his theory, the Sith would be more powerful if the Dark Side were concentrated in one or two…hence, limit it to a master and an apprentice.
It looks like the same thing happened to the positive side of the Force. With SO MANY Jedi and so few true enemies (until Naboo, the Sith were believed extinct), the Force is now being consistently tapped by too many. (Imagine hooking up 9000 motors to the same generator…maybe they’ve all got power, but they’d individually have a lot more if you started to reduce the number). This accounts for a lot of things, like why Jedi have become so darn easy to kill (let’s face it, Qui-Gon dropped like a brick), why they can’t smell a Sith Lord in the same room as them, and why they can’t see the future clearly. Plus, with only two Sith tapping the dark side, they’re probably having a MUCH easier time using their stealth powers.
Isn’t it interesting that Luke had a clear vision of the future when he was on Dagobah, at a time when he and Yoda were the only Jedi left? Again, if they’re the only two people who can tap into the force, it’s going to be a lot more efficient for them; hence, their powers are greater.
So, back to Obi-Wan (who, by the way, is the smartest darn character in Episode II, IMO, because much of what he does is reliance on his own personal intuition rather than the force. I suspect he’s taught himself to use it only as necessary. He acts much the same way in Ep. IV.) By Episode IV, he and Yoda are the only ones left. Full, uninhibited access to the force. When Vader’s about to kill him, he gives the famous line, “Strike me down and I will become more powerful than you can possibly imagine.” What if this isn’t a statement of consequence, but of his own abilities? He’s not saying “Strike me down and I’ll disappear because I’m a Jedi,” but “Strike me down and I’ll make myself vanish into the force before your blade can touch me.” In other words, he’s so able to access the Force at this point, he can just go ahead and “poof” like that. Yoda can do the same thing because, by Episode VI, he and Luke are the only Jedi left. And when Anakin returns to the light, he does the same. (Although, there’s debate over whether Anakin’s body did “poof” in Episode VI. We saw his ghost, but we never saw him vanish.)
Maybe this is what “bring balance to the Force” really means. I’m uncomfortable with this theory only because, if correct, it means that the Force is somehow finite, which seems at odds with the Buddhist roots of the concept.
So…any takers on this theory?