Triple effect, looping trolley and felix culpa

Frances Kamm uses her principle of triple effect to resolve the loop version of the trolley problem. On the loop version, as usual, the main track branches into are two tracks, track A with five people and track B with one person, and the trolley is heading for track A. But now the two tracks join via a loop, so if there were no one on either track, a trolley that goes on track A will come back on track B and vice versa. If we had five people on track A and no one on track B, and we redirected the trolley to track B, it would go on track B, loop around, and fatally hit the people on track A anyway. But the one person actually on track B is big enough that if the trolley goes on track B, it will be stopped by the impact and the five people will be saved.

The problem with redirecting to track B on the loop version of the trolley problem is that it seems that a part of your intention is that the trolley should hit the person on track B, since it is that impact which stops the trolley from hitting the five people on track A. And so you are intending harm to the person on track B.

In her Intricate Ethics book, Kamm gives basically this story about redirecting the trolley in the loop case:

• Initial Intention: Redirect trolley to track A to prevent the danger of five people being hit from the front.

• Initial Defeater: The five people come to be in danger of being hit from the back by the trolley.

• Defeater to Initial Defeater: The one person on track B blocks the trolley and prevents the dangers of being hit from the back.

The important point here is that the defeater to the defeater is not intended—it is just a defeater to a defeater. Thus there is no intention to block the trolley via the one person on track B, and hence that person’s being hit is not a case of their intentionally being used as a means to saving lives.

But this defeater-defeater story is mistaken as it stands. For given the presence of the person on track B, there is no danger of the five people being hit from the back. Thus, there is no initial defeater here.

Now, if you don’t know about the one person on track B, you would have a defeater to the redirection, namely the defeater that there is danger of being hit from the back. But learning about the person on track B would not provide a defeater to that defeater—it would simply remove the defeater by showing that the danger doesn’t exist.

That the story doesn’t have a defeater-defeater structure does not mean that one is intending the one person to be hit. Kamm might still be right in thinking there is no intention to block the trolley via the one person on track B. But I am dubious of Kamm’s story now, because I am dubious that the danger of being hit from the front yields a worthy initial intention. For there is nothing particularly bad about being hit from the front. It is only the danger of being hit simpliciter that seems worth preventing.

It is interesting to me to note that even if Kamm’s story doesn’t have defeater-defeater form, the main place where I want to use her triple effect account seems to still have defeater-defeater form. That place is the felix culpa, where God allows Adam and Eve to exercise their free will, even though he knows that this would or might well (depending on details about theories of foreknowledge and middle knowledge) result in their sinning, and God’s reasoning involves the great goods of salvation history that come from Adam and Eve’s sin.

• Initial Intention: Allow Adam and Eve to exercise their free will.

• Initial Defeater: They will or might well sin.

• Defeater to Initial Defeater: Great goods will come about.

Here the initial defeater is not mistaken as in the looping trolley case—the sin or its possibility is really real. Moreover, while it’s not an initially worthy intention to prevent people from being hit from the front, unless they aren’t going to be hit from behind (or some other direction) either, it is an initially worthy intention to allow Adam and Eve to exercise their free will, even if no further goods come about, because free will is intrinsically good.

Thus we can criticize Kamm’s own use of triple effect while yet preserving what I think is a really important theological application.

Christians and Jews should not be Aristotelian virtue ethicists

If virtue ethics is correct:

1. An choice is wrong if and only if a person with the relevant virtues and in these circumstances wouldn’t have made that choice. (Premise)

If Aristotelian virtue ethics is correct:

2. An adult lacking a virtue is defective. (Premise)

But:

3. Humans became defective because of the choice of Adam and Eve to eat the forbidden fruit. (Premise)

And it seems that:

4. Adam and Eve were adult humans when they chose to eat the forbidden fruit. (Premise)

Thus it seems:

5. When Adam and Eve chose to eat the forbidden fruit, they were not lacking relevant virtues. (By 2–4)

6. Thus, persons (namely Adam and Eve!) with the relevant virtues and in their circumstances did choose to eat the forbidden fruit. (By 5)

7. Thus, their choice to eat the forbidden fruit wasn’t wrong. (1 and 6)

8. But their choice was wrong. (Premise)

9. Contradiction!

Here is one thing the classic virtue ethicist can question about this argument: the derivation of (5) depends on how we read premise (1). We could read (1) as:

10. A choice of A is wrong if and only if a person who had the relevant virtues explanatorily prior to having chosen A and was in these circumstances would not have chosen A

or as:

11. A choice of A is wrong if and only if a person who had the relevant virtues while having chosen A and was in these circumstances would not have chosen A.

If we opt for (10), the derivation of (5) works, and the argument stands. But if we opt for (11) then we can say that as soon as Adam and Eve chose to eat the fruit, they no longer counted as virtuous.

Could the virtue ethicist thus opt for (11) in place of (10)? I don’t think so. It seems central to virtue ethics that the right choices are ones that result from virtue. And that is what (10) captures. To a great extent (11) would trivialize virtue ethics, in that obviously in doing a bad thing one isn’t virtuous.

Against the actual truth of transworld depravity

Here is an interesting result. If the Biblical account of creation is true, then Plantinga’s Trans-World Depravity (TWD) thesis is false. All this doesn’t affect Plantinga’s Free Will Defense which only needs the logical possibility of TWD, but it limits its usefulness a little by making clear that the defense is based on an actually-false assumption. (Quick review: Plantinga uses the logical possibility of TWD to argue for the logical possibility of evil. That argument would survive my critique. But he also suggests that TWD is epistemically possible, and hence could be the heart of a theodicy. That move does not survive, I think.)

I’ll take TWD to be:

1. Every significantly free creature in every feasible world does wrong.

A feasible world is one that would eventuate from God’s strongly actualizing the strongly strongly actualized portion of it.

But now consider this thesis which is very plausible on the Biblical account of creation:

2. At least one human made a significantly free right choice before any human made a free wrong choice.

For the first sin in the Biblical account is presented as Eve’s taking of the forbidden fruit in Genesis 3. But prior to that, indeed prior to Eve’s creation, Adam was commanded to take care of the garden (Gen. 2:15). It would have been a sin for Adam to fail to do that, and since this was before the first sin, it follows that Adam must have done it. Moreover, Adam being a full human being presumably had freedom of will, and hence was capable of refusing to work the garden. Hence Adam’s decision to obey God’s command to work the garden was a significantly free choice before any human made a free wrong choice.

Now, I don’t take the story of Genesis 2-3 to be literally true, but it tells us basic truths about the entry of evil into the world, and hence it is very likely that the structural claim (2) carries over into reality from the story.

I now argue that:

3. If (2) is true, then TWD is false.

Right after the first human made a significantly free right choice, God had the power to prevent any further significantly free choices from ever being made. Had God exercised that power, the world would have contained a creature—namely, the human who made the significantly free right choice—that is a counterexample to TWD. Moreover, the world where God exercises that power is plainly feasible. Hence, (1) is false, since in (1) there is a significantly free creature that does the right thing.

That said, Plantinga’s TWD is stronger than it needs to be for his defense. All he really needs to work with is:

4. Every feasible world that contains a significantly free creaturely right choice contains a free creaturely wrong choice.

And the world where God intervenes and prevents significantly free choices after the first human significantly free right choice is not a counterexample to (4), since prior to the creation of humans there was already sin by angels.

Note, though, that someone who wants to defend (4) by invoking the prior sin of angels needs to hold that the first humans would have sinned in their first significantly free choice had God not created angels or not given angels significant free will, no matter what circumstances the first humans were placed in. In other words, the defender of (4) has to hold that the actual righteousness of the first human significantly free choice has a strong counterfactual dependence on angelic freedom. The only plausible way I know of defending something like this is to say that angelic free choices are a part of human causal history and that essentiality of origins is true. So, interestingly, to hold that the weakened TWD thesis (4) is true seems to require both invoking the sin of angels and essentiality of origins.

Moreover, the defender of the actual truth of (4) would need to hold that the first angelic wrong choice preceded the first angelic significantly free right choice. For suppose an angelic significantly free choice came before any angelic sin. Then, again, God could have suspended free will right after that choice, and not created humans at all, and we would have a feasible world that is a counterexample to (4). Next, suppose that the first angelic significantly free choice was simultaneous with the first angelic sin. Presumably, the two were committed by different angels. But God could have suspended the freedom of those angels who in the actual world sin (this does not even require Molinism: God doesn’t need to know that they would sin to suspend their freedom), and plausible the simultaneous significantly free right choices of the other angels would still have eventuated. And then God could have suspended freedom altogether, thereby furnishing us with another feasible world that is a counterexample to (4).

One can modify (4) in various ways to get around this. For instance, one could say this:

5. Every feasible world that contains a significantly free creaturely right choice and that contains many generations of significantly free creatures contains a free creaturely wrong choice.

But note that if (5) is true, then one needs to invoke more than the value of freedom in saying that God is justified in creating a world with evil. One needs the value of multi-generational freedom.