LogFAQs > #966038875

cloelea posted...

then it'll cause a paradox for star wars episode 4-6 not to exist

This sort of goes hand-in-hand with what I said in the other topic:

ParanoidObsessive posted...

The answer isn't coming up with a dumb throwaway handwave explanation to justify it and then move on, the correct answer is not writing yourself into that corner in the first place.

"I created a potential paradox, and now I have to make characters look like idiots to avoid it" is not a valid excuse. The ideal scenario is not to create the potential paradox in the first place.

If you know Obi-Wan can't kill Vader because of future movies, don't have them fight. If you have them fight anyway, don't have Obi-Wan win.

Ideally, if you have to have them fight (which you shouldn't, because it contradicts dialogue in Episode IV regardless, and that's Prequel-level bullshit), do it in a way where they're separated somehow before one of them can get the killing blow. Imperial troops show up and Obi-Wan has to run away. Vader gets buried under some debris and Obi-Wan doesn't have time to dig him out and finish him off. Obi-Wan gets knocked off a cliff and Vader can't get to him before Obi-Wan gets away. Pretty much any ending that allows them both to get away to meet again another day without having to force one character to choose to spare another.

Best-case scenario, Obi-Wan shouldn't have been saving Leia and shouldn't have been fighting Vader. Shoehorning those things in just because them remind people of the time long long ago when they still liked Star Wars movies just makes the story worse. Respect your own continuity and don't retcon everything just so you can tickle the nostalgia bone.