Cross-posted from my blog.
You might hear stories of someone who influenced someone else to be vegan or to donate 100 dollars and then claimed to have caused X animal lives to be saved or $100 to be donated, which are very good things indeed. But the person who donated that $100 can also claim responsibility for donating that money, because they were an integral step in the outcome, without which the money wouldn’t have been donated.
But if both parties are claiming full responsibility for causing $100 to be donated, shouldn’t that imply that $200 was donated? So who can claim responsibility here? Are they both equally responsible? Is it reasonable to say that they were both fully responsible after all? Or is it, as many things are in the real world, much more complicated than that? This is important if we, as individuals and organisations interested in maximising impact, are going to be rigorous about measuring the impact of individuals.
A friend once told me a story that poses an ethical riddle. It goes like this:
A married woman had been growing bored. Her husband wasn’t paying her attention anymore, and had stopped treating her well. She started sneaking away at night to go and sleep with other men across the river from her house. There was a bridge but she took the ferry to reduce the risk of being seen. One night, she went across the river but the man whom she had arranged to sleep with didn’t show. She went back to the ferry, but the boat master had heard of what the woman was doing from a friend and didn’t want to ferry her anymore. The woman, desperate, went across the bridge, where a drunken man killed her in a fit of rage. Whose fault was it that the woman died?
Another, more complicated riddle is presented:
There were four men in a military camp in the middle of the desert. Three of them hated the fourth, John, and wanted to kill him, but they wanted it to look like an accident. One day, when it was John’s turn to go on patrol, one of the others took his chance and put poison in John’s water flask. A second soldier, not knowing what the first had done, poured out John’s water and replaced it with sand. The third then came and poked small holes in the bottle so its contents would slowly leak out. When John was halfway through his patrol and looked for a drink, he realised his flask was empty, and he died of thirst. Who killed John?
In safety, there is a concept known as the ‘root cause’. For example, take the Air France Flight 4590 in 2000 which involved a Concorde plane outside Charles de Gaulle International Airport in France. The plane crashed, killing all crew and passengers, and some bystanders on the ground. Was it the crew’s fault? No, because the plane’s engine had caught fire shortly before take-off. So was it the fault of the engine manufacturers?
No, as it was revealed that a tyre had ruptured during take-off which hit the fuel tank, which resulted in the flame. This in turn was caused by a piece of metal found on the runway, which had fallen off of another airplane that day. This led back to the operator who had replaced that particular piece of metal, who had incorrectly installed the piece. This was interpreted as the root and primary cause of the accident.
But even so we can go back further. Someone must have trained this operator – did they do a bad job? Is it the fault of the management of that company for not putting the correct practices in place to eliminate the occurrence of such events? Maybe someone had just upset the operator and he wasn’t thinking straight.
If we go back to our first example and apply the root cause logic, that suggests that the woman died because of her husband. But this is an uncomfortable result, as the one who is most at fault is surely the man who actually killed her. Some might argue that the root cause is really just the drunken man, but it has to be said that all individuals in that story played an integral part in the woman’s death.
It might even be argued that the man was not thinking straight. What if he was drugged through no fault of his own? To be clear here, I don’t mean to imply that each player in this chain of events should be held responsible, or indeed be ‘guilty’, but they did play an unknowing role.
Bringing this all back to the original question, I confess I don’t have an answer. But I’m convinced that the answer isn’t as simple as we think, and if we want to be rigorous about measuring the impact that individuals have through an action or over their life, we should consider this further. At the very least, we should define very clearly what we mean when we say “I/we caused $100 to be donated.”
Looking forward to hearing comments.
There is certainly an important difference here between cause and blameworthiness. In law, as in many cases in philosophy when one wants to make a moral appraisal, we are interested in more than mere causation. Culpability is often an additional requirement, and that can make things murky. Further, even more murkiness is introduced by the presence of moral luck, which some have argued might be highly intractable. However, for the purposes of EA assessments, I think basic counterfactual causation is sufficient. In precise terms, I think it is enough for a cause to be merely necessary, if not sufficient, for us to evaluate it as being useful. Let's say that I convince Smith to donate a million dollars to an effective charity. It is certainly true that such a donation wouldn't have been possible if Smith hadn't earned that million dollars, but it is also true that the donation wouldn't have occurred had I not made my pitch to Smith. We can say both factors (me pitching Smith and Smith earning the money) are necessary but not sufficient, assuming it is in fact true that Smith wouldn't have made a similar donation without me. This does open up the possibility that both Smith and I can say that we "caused" a million dollars to be donated to an effective charity, but I'm not sure that's actually problematic. Without either one of our actions occurring, the donation wouldn't have happened.
When extrapolating this concept over the course of multiple cause/effect cycles, however, I believe there may be an epistemic problem. Using Singer's vegetarian in the cafeteria example, it is very hard to know how many of the subsequent vegetarians would have come to accept vegetarianism through other channels. We might not even be able to attribute all of Singer's vegetarianism to this one individual, as it seems like Singer might be the sort of person who would have at some point accepted vegetarianism anyway. In other words, even playing the counterfactual game, it isn't clear what the otherwise outcome might have been. This seems to be a problem that we would face in any large set of cause/effect cycles.