String Loops

Look, I'll explain it again, even though I've told you dozens of times, although you don't remember them, to be fair.

I'm looking for someone important, who is currently lost in a pocket dimension. I'd explain how she got there despite that being classified, but while no-one would know, you wouldn't understand.

To get her back, I need to find the right frequency of string vibration and pull her out. There's billions of possibilities, so I've set Earth up into a time loop till I find her.

I've only lost count a few times, I'll be done soon enough, OK?