What a belief implies about what someone does depends on many other things, like other beliefs and their options in the world. If, e.g., there are more opportunities to work on x-risk reduction than s-risk reduction, then it might be true that optimistic longtermists are less likely than pessimsitic longtermists to form families (because they’re more focused on work) than pessimistic longtermists.
Having clarified that, do you really not find optimistic longtermism more evolutionarily adaptive than pessimistic longtermism?
As my answer made clear, the point I really want to emphasise is that this feels like an absurd exercise — there’s no reason to believe that longtermist beliefs are heritable or selected for in our ancestral environment.
Thanks for sharing this fun paper!
I think I disagree with several key parts of the argument.
I think this makes a pretty important error in reasoning. Grant that philosophers in general are among the most skeptical people on the planet. Then you select a 6% segment of them. The generalization that these are still among the most skeptical people on the planet is erroneous. This 6% could have of (e.g.) average levels of skepticism, and it’s the rest of the group that brings up the average level of skepticism of the group.
This is among the passages commonly interpreted as Jesus discussing hell. However, note that it doesn’t actually show Jesus discussing hell as we’ve been thought to think of it. First, he’s clearly speaking in metaphor — he’s not talking about literal sheep and goats. It’s not clear what the “eternal punishment” he’s referring to is. Some people interpret this as more of a “final” punishment, e.g. death, rather than eternal suffering. And indeed, if Jesus were referring to hell as traditionally conceived, I’d expect him to be clearer about this.
Many scholars on the topic have written extensively about this. My understanding is that there’s little solid basis for getting the traditionally understood concept of hell out of the core ancient sources. And I’d expect, if it were true, and Jesus really were communicating about something as important as hell with divine knowledge, there would be no ambiguity about it. (Since the Quran comes after and is influenced by Christian sources, I don’t think we should read it as a separate source of evidence.)
I think this is a very strong reason to doubt the plausibility of hell. And there are many other such reasons:
Generally there’s little reason to think ancient texts are strong sources of truth on questions of cosmological significance.
These kinds of extravagant claims are completely discordant with our ordinary experience of the world.
These kinds of claims pattern match to the kinds of stories people might make up in order to control others.
There are very plausible error theories about why people believe religious claims like these.
There are many religious believers who reject these particular claims about hell even while being sympathetic to other religious claims.
The weight of these considerations drives the plausibility of hell extremely low, much lower in my view than the possibility of x-risk from risks like nuclear weapons, pandemics, AI, or even natural sources like asteroids (which, unlike hell, we know exist and have previously impacted the lives of species).
I think this does make the odds of a religious catastrophe pascalian, and worth rejecting on that basis.
Even if the risk weren’t pascalian, I think there’s another problem with this argument, with reference to this part of the argument:
The problem here is that if you advocate for the wrong religion, you might increase the chance people go to hell, because some religions think believing in another religion would make you go to hell. So actions on this basis have to grapple with the possibilities of infinite bliss and infinite suffering, and we often might have just as much reason to think we’re increasing one or decreasing the other. And since there’s no reliable method for coming to consensus on these kinds of religious questions, we should think a problem like “reduce the probability people will go to hell” — even if the risk level wasn’t pascalian — is entirely intractable.