In the limo scene right before they find Syndrome with Jack-Jack, Dash says "...And then you (Mr. Incredible) threw that car..." However, Mr. Incredible NEVER threw a car before in the entire movie. Ever. BUT in five minutes, he takes out Syndrome with a thrown car. Also, Dash knew that the supersuits Edna made were special. He says "I dunno. Why did Mom try and hide them?", but keeping in mind he's really young, he probably doesn't even know he can see the future yet. And near the beginning he says "[If everyone is special], then no one is." Which parallels nicely what Syndrome told the entire family when they were imprisoned. Of course, the latter two examples could have been explained as the truth / story symmetry, but when you look at it with the first example in mind...