Why Harry could and had to save himself by going back in time;
At the same time why Voldemort couldn’t just sneak one of those Time-Turners before he was in any danger and just use that every time.

Obviously JK Rowling sets the limits of the magic, but then she has to follow them. If Harry was able to save himself through time-travel, then it becomes possible for anyone to do so, unless Harry is a special case.

http://camomiletea.livejournal.com/163115.html

Actually, I think that in the theory Greg is talking about you cannot change anything at all, even if you don’t know things. Like Greg, I also think that this theory makes more sense than the other one that does allow you to change things.

For instance, I’ve recently watched “The Lake House” movie, which deals with some changing of the past, if not actually time-travel, and I absolutely hated how it happened! Basically (and I’ll try not spoiling stuff), there was an event in the past that the heroine wanted to change, so that it didn’t actually happen.
1) It actually already happened, and she knew about it;
2) She sent a letter into the past to ensure that this event does not occur;
3) She changed the past, and she still remembered the old version of the past.

Now there a few problems I see with that: now the event that motivated her to send that letter to prevent it from happening — that event *didn’t occur*. She doesn’t have any reason to send that letter, and technically, she shouldn’t even remember learning about that event, because now it didn’t occur.

This is not my idea of how time works. I like my movies to make sense, even in such complicated situations. (“Back to Future” movie more or less made sense, just used a different model.)

There was actually a good article on Mugglenet about time-travel in Book 3, that showed exactly how Harry and Hermione didn’t change a thing about the past. (Mugglenet is down right now, so I cannot link to it. And actually I saw a better article a few years ago, but since it’s been that long ago, I don’t know exactly where it was.)

And yes, I think there was no escaping; Harry had to go back in time, because that’s how it happened — he did go back. No matter how circular that may seem, that makes sense to me, at least.

Greg Says:

March 18th, 2007 at 11:16 pm
Tylyn: Bring it on! Penny and I looked it up over the weekend and she agrees with me. I will have to get her to state that on the next podcast!

no mention. you scared?
*fake mocking*

wanna get froggy greg? then JumP!

haha just kidding

BWAH!!

sorry, i get (as my friends call it) a tad eccentric or however you spell it
so there, i agree with penny also that time travel confuses me too much

The movie’s entire plot is a model example of a Predestination paradox, wherein Bill and Ted are entrusted with the means to dramatically improve the entire universe of the future by a citizen (Rufus) of that very future. Near the end of the movie, Ted solves the problem of breaking into the jail by exploiting this paradox, demonstrating an unexpected (probably to himself as well) level of temporal insight. Knowing that time travellers (themselves) in the future world can provide aid to those in their current situation (as Rufus does originally), they resolve to help themselves break into the jail by stealing Ted’s dad’s keys from a couple of days ago and leaving them where they will be found at the exact moment of the resolution. The astute viewer may reflect at this point that Ted’s dad complained about having lost his keys at the beginning of the film, which Ted at that time knows nothing about. This accordance with the Novikov self-consistency principle, suggests that there was never any possibility for Bill and Ted to fail. The same accordance lends validity to the fact that their removing critical figureheads from history does not cause the world of present-day San Dimas to be drastically different (Although, Bill and Ted might have pulled them out of history after they have done what made them famous.) Moreover, and perhaps more relevant, their history project remains impressive insofar as the history produced by the characters has not been modified by their absence. Bill and Ted are paradoxically bound to return them all afterwards, unscathed.

Anyway, hope that helps. Keep up the good work.

(P.S. Maybe it’s just me, but I love to put a face to a voice. Any chance that you could put a picture of yourselves on the website?)

Thanks,
Frank

It’s confusing is what it is.

Penny: I think I’ve seen this once but that was when I was quite young, so I don’t really remember much. Must find video! =)

Anyways, I emailed Penny with the link to “The Blue Yonder”, a 1985 Disney made for TV movie. Here’s the link, if some of you guys want to check it out:
http://us.imdb.com/title/tt0088831/combined

=)

Penny: I think I’ve seen this once but that was when I was quite young, so I don’t really remember much. Must find video! =)