Well, I agree that there are scientific issues, and I honestly am not completely sure. I've seen some very good time travel fics, but almost all of them involve the past. That's one of my favorites - I read it in one night when I was supposed to be doing homework, and then reread it at least three times in the next week.

And no problem on the link - painless_j makes very good lists, and I saw no reason to try and find a list of all of my favorites when it's, you know, right there.