Geroge Lucas is the guy who created the concept of the force, and it was brilliant. Then in episode one, he told us the force was basically a blood type.
This is the same guy who tried to convince us in ep. 3 that to have a ghost after death, you must learn a new teqnieque. The OT implies that when a jedi dies, he is so strongly in tune with the force that he becomes one with it and can come back and contact people through it.
Isn't the OT a bit more meaningful.....
And on the subject of Hayden Christiansen becoming Anakin in the end of ROTJ.....god that was stupid. George says he was supposed to look like the good Anakin. Then shouldn't he look like the one who redeemed himself by saving his son and killing the emporer? He was a good person who had redeemed himself at death, so that's how he should have looked.