TL;DR: The explore-exploit tradeoff for causes is impossible if you don't know how far exploration could take you - how good the best causes may be.
Recently, I found out that Centre for Exploratory Altruism Research (CEARCH) estimates, with a high confidence level, that advocacy for top sodium reduction policies is around 100x as cost-effective as top GiveWell charities, in terms of DALYs. This made me feel like a sucker, for having donated to GiveWell.
You see, when I'm donating, I think of myself as buying a product - good for others. The hundreds of dollars I donated to GiveWell could've probably been replaced with a couple of dollars to this more effective cause. That means that I wasted hundreds of dollars, that could've done much more good.
But let's use milk as an analogy. GiveWell is the equivalent of buying a liter of milk for 200$. If that happened with a product I wanted to buy for myself, I would probably feel scammed. A literal lifetime of donations to GiveWell might be replaced with 6 months of donating to this cause. I'm not saying I got scammed, but thinking about it from the perspective of buying good intuitively helps. Nowadays I don't donate to GiveWell anyways, but it sucks.
This - being a sucker who pays too much for doing good - is really bad. It's exactly what we try to avoid in EA. It can decrease our impact by orders of magnitude.
And that's not even the end. CEARCH also estimated (although with a low level of certainty) that nuclear arsenal limitation could be 5000x cost-effective as top GiveWell charities. If they're wrong by an order of magnitude, that's still 5x times better then even the hypertension work. Now donating to GiveWell is like buying a liter of milk for 1000$. And who's to say that there's nothing 50x more effective than the nuclear cause?
At some point, you might consider to stop buying milk for the moment, and looking around for the cheapest prices. And you'll probably not get the cheapest, but you might be able to figure a reasonable estimate of them, and buy at a rate close to it.
So this situation made me think - can we put a reasonable limit to the maximum cost-effectiveness of our money and time? Within a 50% CI? 80 CI? 99% CI... And can we have a reasonable estimate for the time it will be reached?
For someone extremely risk-averse it's probably easy, as there are only so much RCTs in our world. And it's seems likely that GiveWell is within a close range. But for anyone that's risk-neutral, I can't think of a good way. So I've come to ask you wonderful people - what do you think?
The end result I'm thinking of is something like:
"The maximum cost-effectiveness we can expect is 500x-50,000x that of GiveWell (95% CI). The year we expect to find a cause within an order of magnitude of that cost-effectiveness is 2035-2050 (50% CI)".
But of course any input will be interesting.
Things that could potentially limit cost-effectiveness, off the top of my head:
- A weak form of the 'stable market hypothesis' for doing good.
- Hedonic adaptation - people adapt to better circumstances. The amount of good we can induce in anyone's lives is thus limited.
- Caps on the amount of humans & other beings that are likely to ever live.
Note: I'm emotionally content with my past donations to GiveWell, don't worry. Also, this is not a diss on GiveWell, they're doing a great job for their goals.
CEARCH's work is, as the name implies, exploratory. It searches for new potential programs and cause areas. It recognizes that early-stage CEAs often overstate the effectiveness of a program. Even its deep CEA on hypertension relies on a lot of guesswork in my view.
I personally think its work is often seriously overoptimistic, especially when it comes to predicting the success and ease of lobbying efforts against considerable opposition. But that's more okay given its exploratory function. If there were a shovel-ready sodium-reduction charity ready to receive and deploy significant funds, I would view that as akin to buying equity in a brand-new startup.
GiveWell does something entirely different with its Top Charities -- you're getting a specific implementation of a program by a carefully vetted charity, with a pretty tight cost-effectiveness analysis based on either the charity's actual performance or efficacy of similar real-world interventions in a randomized controlled trial.
The extent to which people should prefer tried-and-true interventions versus novel-but-potentially-higher-impact ones is a recurrent question. But most of us retail global-health donors who have done our research, as well as the bulk of the money from big donors in EA global health, goes to the tried-and-true. That is a pretty good clue that we are not all being "scammed" here!
Finally, to the extent that work with insanely good cost-effectiveness exists, that work often has limited room for more funding. Here, for instance, both of your examples involve lobbying.
I might've used too strong of a language with my original post, such as the talk about being a sucker. For me it's useful to think about donations as a product I'm buying, but I probably took it too far. And I don't think I've properly emphasized my main message, which was (as I've added later) - the explore-exploit tradeoff for causes is really hard if you don't know how far exploration could take you. Honestly, I'm most interested in your take on that. I initially only used GiveWell and CEARCH to demonstrate that argument and show I how go... (read more)