No? I don't see how you arrived at that, it seems entirely non-sequitur. I guess you deeply misunderstood what I meant by "moral distance." I'm simply trying to give a name to the idea that there isn't just a binary good vs. bad, and that some things are vastly worse than others. You might choose to represent it on a simple scale where bad is in the negative and good in the positive. In such a case, moral distance would be the distance between the two points on that scale. That's all. This representation would have no impact on whether a single individual can do things that exist on polar opposites of such a scale.

In the context of my comment the point is more about the distance between saying something rude and killing someone, it would be a large distance despite both being negative, and the tolerance levels would likely start somewhere in the negative side of the scale, though in reality you're going to be dealing with much more complex perceptions of good vs. bad behavior and social tolerance of it. But when you compare to the law that's going to have more of a concrete boundary. But it's still not 0 on this scale.

It depends on if your question is about legality, morality, social stability, privilege of some sort, or perhaps something else.

If someone offered to cure cancer, but only if you permitted them to commit a single specific murder, is that a reasonable trade? All you've got there is yet another trolley problem.

I think it's different to the trolley problem in terms of trying to measure the outcome.

If we make decisions based on what will have the best outcome, well the trolley problem is trivial; minimise the negative outcome.

In the scenario of murder for the cancer cure, you're still left with someone who was murdered. My take is that this isn't any less bad than someone who was murdered for something other than the cure for cancer, which in turn means I would stop this murder even if it meant not curing cancer.

> you're still left with someone who was murdered

You've lost me. Isn't that also the case in any trolley problem? The trolley is a sort of satirical analogy. The thing actually being considered is "I get this good thing but I'm also left with this bad thing as a direct result".

I guess a key difference is before versus after the fact. Agreeing to the outcome to "pay" for what you want is different than deliberating over an act committed by the same person after the fact in the absence of any prior agreement. But if the only issue is the lack of an agreement then it's less a matter of "murder non-fungible" and more a matter of enforcing legal procedure for the sake of social stability. The state needs to maintain its monopoly on violence I guess.

It would be a pretty classic ethical dilemma if they couldn't develop a cure for cancer if you deny them murdering anyone. In the other case it would only be correct to try them for murder since it would be an independent act.