File under: FINALLY! Via Wired, check out philosopher Leif Wenar’s devastating and definitive critique of such intellectual con artists like William MacAskill, Toby Ord, and Peter Singer. By way of example, below is a key passage from Professor Wenar’s brutal no-holds-barred must-read takedown of the “Effective Altruism” movement and of its leading charity scam, GiveWell (all links in the original):

Today, GiveWell highlights detailed calculations of the benefits of donations to recipients. In an estimate from 2020, for example, it calculates that a $4,500 donation to a bed nets charity in Guinea will pay for the delivery of 1,001 nets, that 79 percent of them will get used, that each net will cover 1.8 people, and so on. Factoring in a bevy of such statistical likelihoods, GiveWell now finds that $4,500 will save one person.

That looks great. Yet GiveWell still does not tell visitors about the well-known harms of aid beyond its recipients. Take the bed net charity that GiveWell has recommended for a decade. Insecticide-treated bed nets can prevent malaria, but they’re also great for catching fish. In 2016, The New York Times reported that overfishing with the nets was threatening fragile food supplies across Africa. A GiveWell blog post responded by calling the story’s evidence anecdotal and “limited,” saying its concerns “largely don’t apply” to the bed nets bought by its charity. Yet today even GiveWell’s own estimates show that almost a third of nets are not hanging over a bed when monitors first return to check on them, and GiveWell has said nothing even as more and more scientific studies have been published on the possible harms of bed nets used for fishing. These harms appear nowhere in GiveWell’s calculations on the impacts of the charity.

In fact, even when GiveWell reports harmful side effects, it downplays and elides them. One of its current top charities sends money into dangerous regions of Northern Nigeria, to pay mothers to have their children vaccinated. In a subsection of GiveWell’s analysis of the charity, you’ll find reports of armed men attacking locations where the vaccination money is kept—including one report of a bandit who killed two people and kidnapped two children while looking for the charity’s money. You might think that GiveWell would immediately insist on independent investigations into how often those kinds of incidents happen. Yet even the deaths it already knows about appear nowhere in its calculations on the effects of the charity.

And more broadly, GiveWell still doesn’t factor in many well-known negative effects of aid. Studies find that when charities hire health workers away from their government jobs, this can increase infant mortality; that aid coming into a poor country can increase deadly attacks by armed insurgents; and much more. GiveWell might try to plead that these negative effects are hard to calculate. Yet when it calculates benefits, it is willing to put numbers on all sorts of hard-to-know things.