And the parallels between the tragedy of the commons and the climate situation — it’s in everyone’s interest if we all reduce carbon use, but if you do emit carbon, you gain all the benefit of your economic activity while paying only a tiny fraction of the cost — are almost too obvious to state. (Although I did just state them anyway.) Again, if some world government were to be set up and punish countries for emitting too much, it would be simple to solve; but no real world government exists, so coordination remains hard.
In the time of the coronavirus these problems are being illustrated amazingly starkly. It’s in everyone’s interests if everyone strictly self-isolates and washes their hands 10 times a day. But these actions are costly – self-isolation is lonely, and thanks to the washing my hands at least are red and cracked and look like they’ve aged 20 years. So if everyone else were to do it, but you carried on walking around, licking lampposts, cuddling strangers and never washing your hands, just as normal, then you’d gain all the benefit of that while (assuming you’re relatively young and healthy) paying only a fraction of the increased risk.
Similarly, it’s in everyone’s best interests if we all agree to only buy one bottle of Calpol so the shelves are always full – but if you don’t trust other people to do that, it’s in your interest to buy extra, to make sure you have some. So everyone buys more than they need, spending too much money, and other people end up with none, even though there’s enough to go around.
That’s before you get into the utilitarian calculus: the moral mathematics of “if I do X, it will probably cause X good things but Y bad things; is X bigger or smaller than Y?” Doctors are going to have to decide who lives and who dies. Decisions made by politicians will do the same, and not always as obviously as you might think; Jeremy Farrar, the director of the Wellcome Trust, points out that during the Ebola crisis, more people died of malaria than the actual epidemic, because all the resources that would have been directed to curing them went to stopping the spread of the disease.
But even on a personal level, we are going to have to make those sorts of decisions. If I take my children to the park — even if I am incredibly careful — I am slightly increasing the risk that they or I will pass on the disease. There is a small but non-zero chance that someone will die because of that decision. But if I don’t take them to the park, their lives will very probably be slightly worse. How do you trade low-probability but high-impact events off against high-probability, low-impact ones like that? How many days at the park is worth one death? The answer is not “infinity”; we don’t think that lives are infinitely valuable. We take small risks of terrible things happening all the time, in order for nice things to very likely happen: we cross the road to the restaurant, we drive to the seaside.
Now, though, those decisions are being made starkly obvious. And the awful thing is that sometimes it is rational, on the utilitarian calculus. If your children gain +10 Happiness Points from going to the park, someone dying is worth -100,000 Happiness Points, and the risk of someone dying from your specific actions is 0.005%, then since 0.005% of -100,000 is -5, the park visit is worth it. How do you factor that in, when you’re already struggling to overcome the Molochian trap of the coordination problem?
I should admit: at the weekend, we took our children to a local park, moved as far away from others as we could, and played football and frisbee just between the four of us. Around us – at a distance – we could see dozens of others, all slowly moving around in their families or other groups. It looked like everyone was horribly aware of the utilitarian trade-off they were making, even if they weren’t thinking in actual numbers.
Millions of people around the country have been finding themselves in the middle of a massive multiplayer game of something like the coordination problems described above, played for real-world stakes of lives and happiness. People are having to try to work out what the right thing to do is, and sometimes having to do the right thing even though it is technically irrational — it will have worse outcomes for that person whatever everyone else does. I don’t blame them for not solving problems on the fly that people have spent entire PhDs on.
Coordination problems are not impossible to solve for the actors involved. The Cold War ended; progress has been made on carbon emissions. But it’s hard, and it takes time we don’t have. The Government’s lockdown represents the equivalent of the Farming Czar coming in and ordering everyone to cooperate. We’re not stuck in traffic, we are traffic, and right now we need the roads to be clear.
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SubscribeI always have the lobster when sharing a bill in a restaurant!
‘The Cold War ended…….’
Are you sure about that?