Let us say, by way of a thought experiment, the each of us has the ability to shoot a wide, viscous web from his hands. The web sets up quickly and dissolves after about 20 minutes, during which time we cannot produce another one. We cannot swing on the web or use it to become professional wrestlers, because that would be absurd. We can, however, shoot the web at another human being from a close distance and incapacitate him. So webbed, the other person can do the same thing to us. Then we both have to stare at each other for 20 minutes and think about how the system could be improved.