Andreas Mogensen, a Senior Research Fellow at the Global Priorities Institute, has just published a draft of a paper on "Maximal Cluelessness". Abstract:
I argue that many of the priority rankings that have been proposed by effective altruists seem to be in tension with apparently reasonable assumptions about the rational pursuit of our aims in the face of uncertainty. The particular issue on which I focus arises from recognition of the overwhelming importance and inscrutability of the indirect effects of our actions, conjoined with the plausibility of a permissive decision principle governing cases of deep uncertainty, known as the maximality rule. I conclude that we lack a compelling decision theory that is consistent with a long-termist perspective and does not downplay the depth of our uncertainty while supporting orthodox effective altruist conclusions about cause prioritization.
Interesting. I wonder if the switch to that example was because they had a similar thought to mine, or read that comment.
But I think I can make a similar point with the Monday vs Tuesday example. I also predict I could make a similar point with respect to any example I'm given.
This is because I do know things about Mondays and Tuesdays in general, as well as about other variables. If the papers argue we're meant to artificially suppose we know literally nothing at all about a given variable, that seems weird or question-begging, and irrelevant to actual decision-making. (Note that I haven't read the recent paper you link to.)
I could probably come up with several stories for the Monday vs Tuesday example, but my first thought is to make it connect to my prior stories so it can reuse most of the reasoning from there, and to do that via social media. Above, I wrote:
This says people tend to use social media more on Tuesday and Wednesday than on Monday. I think we therefore have some reason to believe that, if I help an old lady cross the road on Tuesday rather than Monday, it's slightly more likely that someone will post about that on social media, and/or use social media in a slightly more altruistic, kind, community-spirit-y way than they otherwise would've. (Because me doing this on Tuesday means they're slightly more likely to be on social media while this kind deed is relatively fresh in their minds.) This could then further spread those norms (compared to how much they'd be spread if we helped on Monday), and we could tell a story about how that ripples out further etc.
Above, I also wrote:
I would now say exactly the same thing is true for the Monday vs Tuesday example, given my above argument for why the norms might be spread more if we help on Tuesday rather than Monday.
(We could also probably come up with stories related to amounts of traffic on Monday vs Tuesday - e.g., the old lady may be likelier to die if un-helped on one day, or more people may be delayed. Or related to people tending to be a little happier or sadder or Monday. Or related to what we ourselves predict we'll do with our time on Monday or Tuesday, which we probably would know about. Or many other things)
As before: