Staged in future when time travel is available to anyone who can pay for it in the black market, there and then people use the Looper to assassinate anyone by sending them into the past.
This is the real deal, folks - intelligent, humorous, exciting entertainment that happens to be sci-fi but is by no means limited to that genre's target audience in terms of appeal.
The reasoning behind all this may not reward prolonged inspection, but Johnson is smart enough to press onward with his plot, leaving us with neither the time nor the desire to linger over the logic ...
I found myself dreaming of the days when Willis would take a rest from Die Hard-ing to do character cameos of unexpected depth and pathos: Pulp Fiction, Nobody's Fool, and a few others. Now he clings to stoic longevity, and shoots people.