The headline: “MFA confirms offensive remarks from patrons, bans two members.”
I responded to Melissa McDaniel’s tweet above with these tweets:
It is dangerous to our society when finding out and verifying the truth is denigrated. Racism and sexism are real. Proving that they reared their ugly head in a particular instance is a valuable service in fighting them.
Let me say that in relation to sexual harassment and sexual abuse, a good Bayesian assessment of whether it occurred in a given instance requires an understanding of how high the base rates are. But we don't want to create strong incentives (now quite weak) for false accusation.
The temptation to set aside or denigrate truth in service of a cause is an old one. Many religions, believing that people’s eternal souls or the fate of the world were at stake, have subordinated ordinary garden variety small-t truth to what they considered a grander Truth. But as I said in “What is a Partisan Nonpartisan Blog?” I am with my best friend Kim Leavitt in believing
We are in trouble if we let our devotion to Truth get in the way of our devotion to truth.
In particular, those who show a disregard for truth in their eagerness to get particular results betray a certain controlling—and in the extreme—totalitarian impulse. Or to take another perspective, one time that deception and lying is justified is in wartime. But by that analogy, lying to me is a sign that the liar is my enemy. I would much rather make a judgment myself, knowing the truth, than let someone else make that judgment for me. Any argument that I am not able to make that judgment puts me at a lower rank than those who can be trusted to know the truth. In some contexts, such as national security or grand jury testimony, I am OK with being at a lower rank. But in regard to, say, making a judgment about, say, Brett Kavanaugh, as I did in “On Guilt by Association,” or Donald Trump, I would not be OK with the antidemocratic approach of saying only others could be trusted to see the evidence.
Trust but Verify: Bayes Rule. Let me explain my remarks about a Bayesian approach. Bayes’ Rule says that the probability P( ) that someone is guilty of, say, sexual abuse, given being accused, is
P(guilty given accused) = P(guilty) P(accused when guilty) /
P(guilty) P(accused when guilty) + P(innocent) P(accused when innocent)
The fact that sexual abuse is common makes P(guilty) high for the accused and non-accused combined. This “base right” that so many people are, in fact, guilty of sexual abuse makes it more likely that any particular person who is accused is, in fact, guilty. But something that can drag down the probability that any particular person is guilty when accused is if the probably of being accused even when innocent—P(accused when innocent)—is high. Currently, I think the probability of being accused of sexual abuse when innocent is only of moderate magnitude. (It becomes higher in custody battles and political battles where there is more to gain from a false accusation.) And the base rate of being innocent when including both the accused and non-accused—P(innocent)—is high. So if the fraction of innocent people who are accused ever were to become high, that would totally change the equation.
We currently have a system that asks for enough verification that the incentives to falsely accuse are kept in check. But if we ever stopped asking for verification, the number of false accusations could skyrocket. One cannot generalize from a small number of false accusations now to a small number of accusations in a future world where we stopped asking for verification (leaving the accuser unavenged or unhappy if verification cannot be found).
Conclusion. To me, confirming is a noble thing. We need to know what is true and what is not. Anyone who can help us in that regard is doing a good thing. (I talked about some of the key exceptions in my discussion of blackmail in “The Government and the Mob.”) Wherever public policy relies on concealment or deception, we should always be looking for alternative ways of achieving the end (assuming the end is worthwhile) that do not require concealment or deception.’
In the arena of truth, I feel that scientists—both natural and social scientists—have an extra responsibility to serve the truth. It makes me angry to ever see a scientist subvert truth for the sake of other ends—whether those ends are furthering a career or furthering a cause. Trying to turn this principle on myself, I wrote in “What is a Partisan Nonpartisan Blog?”
In a fractal recapitulation of the “team-loyalty versus unvarnished opinion on each issue” conflict, fidelity to the truth can sometimes hurt the overall thread of one’s argument on an issue. Here, fidelity to the truth has to come first. Let me list the legitimate excuses: (a) there is no duty to mention facts that seem to run against one’s argument that are actually unimportant and could easily be answered; (b) for clarity it is permissible to defer dealing with even important, widely-known facts until a commenter sets up the Q part of the Q&A; and (c) human language always deals in approximations, especially in short-form essays. But for a blogger who hopes to have the trust of readers, it is never OK to say something one knows to be false and misleading, even in the service of what one might think is a higher Truth.
I am also angry with anyone who says, in any context, that it isn’t important to verify the truth before rushing to judgment in any matter of consequence.