Not with a bang, but a cough.


The coronavirus outbreak in China has me thinking about disease. Outbreaks remind me that this is quite possibly how the world ends: not with a bang, but a cough.

Being ready for disease outbreaks is challenging. It is hard to know how likely they are, or how bad they’ll be when they start. Some seem serious, and fizzle out: others seem fine, and suddenly become crises (think how the yearly flu suddenly became Spanish flu in 1918, and killed more people than both world wars).

In other words, pandemics are a black swan: a hard-to-predict, rare, and high-impact event. At the same time, preparing for them is a public good: the whole world benefits if a country has better disease detection and response systems, because it reduces how far the disease spreads. Like all public goods, I suspect that means the world is underprepared: for the same reason that no one wants to act on climate change, no one wants to be the one that invests in disease prevention as much as they should, at least not until after the outbreak starts.

Technology is a mixed blessing. Yes, a more globalized world is a riskier one: a disease is only a flight away from spreading to another country. But, borders also now have machines that detect body temperature, to identify sick people trying to fly. If a quarantine is imposed, as in Wuhan, Amazon deliveries mean people no longer have to go to crowded malls and markets to get food and medicine, minimizing the risk of contagion. AI could also help with early detection of symptoms, if it is given the data to do so. Collaboration between countries can help quarantine cases and develop vaccines to stop the spread.

In other words, a more centralized, integrated world is better able to defend itself if it invests in advance, but far more at risk if the defenses fail given the potential for worldwide transmission. That means investing in defenses is more important than ever. I’m not sure we are any better than before at making those investments, though. I’m not even sure that as a society we have a frame for thinking about how much investment in disease prevention is the right amount: how do we know when we’ve invested enough? Too often, we think about that only after the outbreak has started, rather than preparing in advance and investing in the public good. 

It makes me nervous, Ymous. How can we know if we're ready for black swans, and change course if we're not?

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