Three weeks ago I got tested at the Planned Parenthood on Telegraph Avenue in Oakland. The results came back on July 22. I haven’t opened them and don’t intend to. I also won’t share them with the four women I’ve slept with since. Under any serious reading of Nick Bostrom’s work on information hazards, the contents of that MyChart message are dangerous true information, and the responsible thing to do with dangerous true information is to contain it.

I know how this sounds outside the community. But we have a long tradition here of recognizing that some knowledge does more harm than good. In 2010 Eliezer Yudkowsky deleted a post from this site and banned discussion of it for five years because he judged that merely reading an argument could hurt people. Nobody called that cowardice. They called it stewardship. My results are a far more ordinary hazard than Roko’s basilisk, but the principle is the same. Unlike the basilisk, my hazard has burned like a struck match every time I piss since the Fourth of July.

The taxonomy

Bostrom’s 2011 paper sorts information hazards into types. My results fit most of them.

Data hazard: specific information that is dangerous to spread. A positive result would move through the East Bay dating graph faster than anything I might be carrying.

Evocation hazard: information that triggers harmful mental states in the people who receive it. My girlfriend, Lauren, has an anxiety disorder. I’m not going to hand her a document that could set it off over something that may turn out to be nothing.

Signaling hazard: the act of sharing sends information of its own. A man who discloses STD results signals that he’s the kind of man who has STD results worth disclosing.

Knowing-too-much hazard: knowledge that creates obligations. In most states, the question that matters is what you knew. I have arranged not to know.

Attention hazard: even drawing attention to the existence of the information does damage. This is why I deleted the MyChart app and blocked the clinic’s number.

Why I haven’t opened them

The value of information is the improvement it makes to your decisions. Here is mine:

V(open) = P(+)·[U(stop, disclose) − U(continue)] + P(−)·0

If the results are negative, nothing changes. If they’re positive, I’d have to stop sleeping with people and start telling the ones I already have. By my own preferences, that’s worse than continuing. Every term is negative or zero. I’m not avoiding the truth. I’m declining a bet with no upside.

Containment

Bev from the clinic has left four voicemails, each more urgent than the last, and the urgency is itself information I’ve had to firewall. Before I could look away, I saw the first line of the iPhone transcription of the second one: “Hi, this is Bev from Planned Parenthood, I’m calling about your results, it’s important that you—”. That fragment alone moved my estimate more than I’d like. I’ve since turned off voicemail transcription.

The four women are Lauren; Marisa from Hinge; Dana, who sits two rows from me at work; and Kelsey, from a bachelorette party in Nashville. I never learned Kelsey’s last name, which is its own kind of containment.

Coordinated disclosure

In computer security, a researcher who finds a vulnerability tells the vendor privately and gives them ninety days to patch before anything goes public. I’ve adopted the same norm. I’ve notified the vendor, my immune system, and I’m giving it ninety days. The window closes October 20. If the symptoms resolve by then, there will be nothing to disclose.

Meanwhile I’m hedging. I’ve been taking my roommate Derek’s leftover amoxicillin from his wisdom teeth. I’m treating a hypothesis I haven’t tested, which is what any good Bayesian does with a high-prior, high-cost possibility.

Objections

People say the women have a right to know. Rights-talk is how people avoid doing the math. A right to information that makes you miserable, ends a relationship and changes nothing about what has already happened is a right to a worse life. This community has spent fifteen years establishing that true information is not automatically good to share. I am simply one of the few people willing to apply that to my own dick.

Lauren asked me last night, point blank, whether I’d been tested. I told her the truth: yes. She didn’t ask about the results, and I have always believed it’s wrong to volunteer hazardous information to someone who hasn’t asked for it.