Marle's dissapearance...

[Chrono'99]

When Marle appears, the search is called off. Now, time has not immediately affected her - she was born 385-ish years from 600 A.D. Though she is currently in the year 600 A.D., time hasn't caught up with 1000 A.D., meaning her bloodline is still temporarily preserved.

You're describing the Temporal Inertia theory. This theory was extensively discussed before, and was proven to be false. In this article for example (it's near the end):
http://www.chronocompendium.com/Term/Dead_Sea_/_Sea_of_Eden_FAQ_Refutation.html

[Starcore]

I think I'm going to bang my head into a wall now.

As a point against the Jerky affecting the Mayor, would he not be affected the same due to the fact that he himself was not travelling through time? I couldn't explain the forest, but I thought such effects only occured and altered people who were directly moving throughout time. I read the article but I'm still having a bit of trouble with this.

Basically, Marle isn't instantly affected because she's not stationary in time; thus, her involvement with Crono and Lucca are not instantly affected because Crono enters the gate (Assumingly) shortly afterward. The mayor, however, hasn't been affected (Nor did any of his family members) because they remained stationary (At least relative to Crono and Co.; the group traversed time while all other people remained in the natural state and flow of time) in time. While Robo did travel through time, the planet itself didn't; the reason the forest appears instantly to the party is that while Robo was a time traveler, the planet itself grew naturally from his work over 400 years.

[Chrono'99]

There's no difference. How is Marle not "stationary" in time? 400 years pass between 600 AD (where Marle arrived one day) and the resulting 1,000 AD (the one with the original Marle in the past, possibly a new Marle in the present, and Crono going back in time).

[Starcore]

What I meant was that she isn't a being that is in her original time period; Marle is originally from 1000 A.D.; her being has been transported into an alternate time stream which may (Or may not) affect her. I'm not exactly sure what I'm trying to get at, since my mind has basically turned to putty at the thought of all of this. But that was my point.

[Chrono'99]

Yes, but whether she was born in the present or anywhen, 400 years still have to pass between 600 AD and the resulting 1,000 AD.

The Crono and Lucca who track her can't technically come from the original 1,000 AD but from the modified 1,000 AD, because when Marle arrives in 600 AD, the whole timeline from 600 to the "end of time" is modified. When we play the game, it really seems like Crono and Lucca and Marle all come from the same original timeline though. This is where the unresolved (...unresolvable?) plot hole is.

[AuraTwilight]

Time Traveler's Immunity.

[Starcore]

See, Chrono's comment assumes that there was a difference in the time line. It's possible that there's an infinite loop that occurs at that same point in time every time the timeline occurs, assuming that Marle always disappears after a certain amount of time, whether or not Crono appears to help her. If the Queen goes missing again, isn't it safe to assume the search for her would continue and Frog would still find her? No, we can't say for sure, but I think we could assume. Remember, Lucca says "As I remember, someone was supposed to save her, but it appears that we've changed time" when Marle disappears.

So, if Marle disappears, and Frog recovers Leene, Marle reappears but never makes it back to her own period, there is only a minor alteration to the timeline since her ancestors still survive and are able to keep reproducing and (Eventually) she's born again to repeat the same events (Which, like I said, would continue in a loop forever).

Temporal Inertia doesn't necessarily have any effect here, because we're ignoring the duration of time and merely speaking about the entire act itself (As I understand the TI theory).

[ZeaLitY]

I thinkw e have that listed as "Leene Survival" at http://www.chronocompendium.com/Term/Telepod_Paradox_%28Reasons_for%29.html

Still doesn't really help the Marle disappearing thing, though...

[Starcore]

I disagree with that theory; just because Marle disappeared in time doesn't mean she was never born the second time the events occured. It would be a loop where she's born, goes back to the past, the events unfold (Let's say she dies in the past because Crono never goes back), Leene survives to keep the bloodline true, and Marle is still born, to keep this happening over and over.

There's no reason for anyone to forget Marle (Unless, as the theory states, she seriously mucks up something and the next 10 generations come to expect this, which is fairly unlikely), since she'll still be born normally every time until she's rescued.

We'll never know the truth, though. So I guess this is just an arguement without end (Hey, look, another infinite loop!).