Darth Sidious: "I have waited al these years for you to fulfill your destiny... I arranged for your conception. I used the power of the Force to will the midichlorians to start the cell divisions that created you."
Anakin: "I don't believe you."
Darth Sidious: "Ahh, but you know it's true. When you clear your mind, you will sense the truth. You could almost think of me as your father."
Anakin: "That's impossible."
Darth Sidious: "Nevertheless, you must decide..."
- ROTS, rough draft, Jan 31 3004
I'm glad Lucas took all of that stuff out.
That same draft had Han Solo helping Yoda on Kashyyyk, which I was also glad to see axed.
However, another concept from this 55 page treatment which I find a little more interesting is the idea that Yoda kind of knew the Jedi were doomed.
It's not really discussed that much, but there was another Qui-Gon Jinn scene written for ROTS - in it, Yoda speaks with QGJ on Kashyyyk. "Yoda would like to know how the Jedi will be destroyed, but QGJ cannot say because the Force is out of balance." is all that is revealed in the Making of book.
But I think there are moments in TPM and AOTC which point to this "Yoda going through the motions, resigned to his fate" thing.
Not to mention the deleted Mace/Yoda discussion from AOTC where they pretty much spell out that the prophecy coming true entails the ascension of the Dark Side.
I was actually expecting this to come up in ROTS, it always seemed we were building up to this revelation - that maybe the head Jedi knew more than they were letting on.
Anyway, getting back to the midichlorians, I didn't really mind them that much.
It's hard to say, but at the end of the day they are just a Maguffin to facilitate the whole "Anakin is the Chosen One and we can prove it" thing.
Which in turn, kind of begs the question - did Anakin actually need to be a Chosen One, and did there need to be a Prophecy for the PT to work at all?
I can see why Lucas went that way with things, it did make a lot of things easier for himself when it came to certain character motivations and establishing drama.
ROTJ, in fact the whole of the OT of course, worked when Anakin was just a Jedi who had strayed from the path and was redeemed.
Now his journey is given more epic proportions because he was the subject of a mysterious, ancient prophecy.
I'm not sure whether that is a good or bad thing, but it works for me.
And, it seems to me, the whole quantative, tangible explanation of the Force - the midichlorians - was introduced just to enable this whole aspect to the story...