Compare and contrast: Last Saturday I went to a friend’s birthday party. I had a few beers and got home around 1:30. I slept until 5:30, then woke with a pounding head. I was awake until 7:30 when I was sick. The pain was sharp, located in a precise spot just at the base of my skull, and impervious to Paracetomol. The usual “never again” thoughts passed through my head. Now when I’d had the drinks (although they were stronger than I’d anticipated) I knew that a certain quantity would be enough to have this effect the next day. But somehow that’s never enough to stop you.

Then yesterday I took my kids for vaccinations in anticipation of our trip to Sri Lanka at the end of December. One of them in particular was very upset about the idea of a small amount of brief pain, even knowing that it would be over in a matter of seconds. The suffering, at least in terms of physical pain, was much less than mine, and yet the emotional stress was that much greater. It’s like the opposite of those old “delayed gratification” experiments. We’re more upset at the idea of a little pain right now than the strong possibility of maybe even greater pain in the future (even if only a few hours in the future).