I don't think it's something new, just something not of jedi etiquette to do, or maybe even it's a technique that was almost forgotten and only a few jedi know about it.
On second thought maybe the thing vader did to keep himself alive after getting melted is akin to the disappearing act. Perhaps (and I could be wrong because I haven't seen EpIV in years) Vader was surprised that Obi Wan had the knowledge and power to execute this maneuver. Pure speculation on my part.
yeah, it is definietly clear Vader was shocked. This is why I think Yoda's the most likely canidate to know how, if it is in fact something old. And Yerssot, what I meant by peace is that there "hasn't been a full scale war since the formation or the Republic" and Ki Adi Mundi points out that the last conflict with the Sith was a thousand years ago "the Sith have been destroyed a millenia". It might be something the Jedi are only allowed to do facing extinction. But, again, that is extreme. This is most certainly a matter Lucas has to clear up.
yeah, well, indeed, last sith-involved war they know off was a millenia ago, and the last full-scale war was about the same time
what I said was that in a whole galaxy you can't believe there is peace between every species and on every planet and jedi will die by attacks and such by people who resist them
ya' think? duh! but we're talking galactic wars. Not little squabbles over boarders, or economics or something like that. We mean severe galaxy wide war. Since it is clear that no matter the cause, this is not an everyday thing for Jedi or they'd all know how to do it. It most likely has something to do with a major shift in the galaxy, like the Sith siezing power. Yoda is the most likely canidate to know how do to his age. I don't think its a forgotten thing, but most likely something held for maybe only a jedi or two, and only high ranking masters at that. As far as martial arts goes, there's supposedly a move that can kill somebody in one touch, its speculation, but the tales say that only two people are allowed to know it, a master and an apprentice. Now, since Lucas has said much of his influence is from Eastern Philosophy, its possible that a similar scenario will be used for the disappearing jedi thing. Its probably a very dangerous power that they don't want just anyone knowing how to do. So only a couple know of it. Sort of a break in case of emergency situation.
then why is he shocked? he's clearly a little perplexed by Obi-wan's disappearing. And Obi-wan's dialogue to Vader before doing it implies Vader doesn't know, Kenobi sounds like hes threatening him with the unknown. i'm not saying my explanation makes sense either. so far, no ones really does. everything we've come up with conflicts some where else. we don't really know anything for sure other than Obi and Yoda for sure know. Somehow Anakin figures it out. And apparently Qui-gon can half do it.
He's shocked because he does not know it is possible of course, Mephisto. At no point was anyone denying this.
But the fact that he does not know what it is and yet DOES it indicates that it is something that is not just taught as a powerful technique, but is rather beyond that and most likely to do with him and the Prophecy and so on.
The problem is that Vader acts surprised when Obi Wan disappears, then ends up doing it himself after his redemption at the end of RoTJ. To me, that in itself suggests that it is a natural occourance that revolves around Anakin/the prophecy. My guess is that if you were instrumental in the fullfillment of the prophecy you become a Jedi Spirit. Qui-Gon found him/brought him to the Jedi, Obi-Wan trained him, Yoda granted Obi-Wan permission to train him to become a Jedi, and of course...Anakin destroyed the Sith to bring balance to the force.
Originally posted by jedi90
if you guys listen to the AOTC commentary on the dvd lucas explains some of it. also in an interview he says that its a trick yoda learns and teaches to obi-wan and anakin. yeah i know that may contradict the whole suprised vader thing but aren't the prequels full of discrepancies.
That is in a VERY old interview, before he did the Prequels, when he said that was one thing we would never learn about.
Clearly he changed his mind since then.