Nigg said it might help me grasp what’s happening if we compare our rising attention problems to our rising obesity rates. Fifty years ago there was very little obesity, but today it is endemic in the western world. This is not because we suddenly became greedy or self-indulgent. He said: “Obesity is not a medical epidemic – it’s a social epidemic. We have bad food, for example, and so people are getting fat.” The way we live changed dramatically – our food supply changed, and we built cities that are hard to walk or cycle around, and those changes in our environment led to changes in our bodies. We gained mass, en masse. Something similar, he said, might be happening with the changes in our attention.

I learned that the factors harming our attention are not all immediately obvious. I had been focused on tech at first, but in fact the causes range very widely – from the food we eat to the air we breathe, from the hours we work to the hours we no longer sleep. They include many things we have come to take for granted – from how we deprive our children of play, to how our schools strip learning of meaning by basing everything on tests. I came to believe we need to respond to this incessant invasion of our attention at two levels. The first is individual. There are all sorts of changes we can make at a personal level that will protect our focus. I would say that by doing most of them, I have boosted my focus by about 20%. But we have to level with people. Those changes will only take you so far. At the moment it’s as though we are all having itching powder poured over us all day, and the people pouring the powder are saying: “You might want to learn to meditate. Then you wouldn’t scratch so much.” Meditation is a useful tool – but we actually need to stop the people who are pouring itching powder on us. We need to band together to take on the forces stealing our attention and take it back.