Talk:My Little Pony Equestria Girls/@comment-5739199-20130923211748/@comment-7345250-20130924044336

Celestia may have meant that sending such a large amount of matter (approx. six times that of Twilight alone) from Equestria to an alternate dimension would likely produce some sort of distortion that would render them unable to complete their task.

Alternatively, it can be interpreted so that Celestia knew that the other Twilight was not at Canterlot High, and she knew that sending Twilight alone would not result in a bunch of uncanny doppelgangers roaming the hallways.

In any case, the sheer ambiguity of the statement makes it completely neglible since, to this day, no one knows what it means.