I'm convinced he intends to shoot the time travel in Looper by actually inventing it.
Just because you mentioned time travel... I bought this, as a shirt, with the money I was supposed to spend on tonight's bus fare to the city.
Money well spent. Apparently there's a huge threadless store around here somewhere, but I haven't stumbled across it yet. I should really try to...
Also, I read a somewhat frightening article about backwards time travel sort of similar to Primer a while ago that frightened me a bit. The basic concept was if the world went to shit, we would build backwards time travel devices and all come back to an easier, better time, say, tomorrow. Now the population has doubled. And over the years earth still goes to shit, and we all go back again, and now it has tripled. And we would keep going back in time to try, to live in a better time, with the population growing every time.
That didn't scare me so much. The thing about it would be that, to us, it would just look like billions of people just appeared on earth tomorrow.