Time Transcendent Gadgets

What if we developed the ability not to send objects back in time, but to send signals back in time? Whenever I'm at home I always keep my iPhone connected to its dock for the duration of my stay. This has the unfortunate side effect of having to manually sync it before I leave so I can get all my updated podcasts. Sometimes I don't have time to do that because I've procrastinated or I've forgotten about it and now I have to leave really quickly. What if some time in the future we developed the ability to send a signal from the point in time I disconnect my iPhone back to the point in time when it's appropriate to start syncing so that it finishes just in time for me to disconnect?

Here's how this would practically play out: all of the sudden, seemingly randomly, I would see my iPhone start to sync. And then, when I'm ready to go, it'll be finished. That's how you'd like to think it would work, but then there's the idea of how exactly time travel works. Because seeing that sync would automatically change my perspective on when I'm ready. What if I saw it start to sync and un-docked it before it was done? Then where did the signal from the future come from since it's now not going to be connected when the signal is supposed to be sent! Did the simple act of un-docking my iPhone just create a parallel universe!? Or did I just erase the future events that were supposed to happen and write my own future?? And did that act disconnecting before it was finished send another signal back in time? And if so, is the phone suddenly finished syncing and did my memory suddenly change to see the sync lasting longer??

I guess this would all be easily solved by, instead, allowing the iPhone to sync over wifi.

This is why time travel is so awesome.

That is all.
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