I mean, we, a random assortment of software engineers on HN, almost certainly lack the data and expertise to forecast the risk of a pandemic. My own self-criti

I mean, we, a random assortment of software engineers on HN, almost certainly lack the data and expertise to forecast the risk of a pandemic. My own self-critique above was more that, even if you could accurately deduce that there is a 1.54e-12 chance per person-year of a person encountering a novel disease that can spread as a global pandemic, you can't then schedule the next one for 450 billion people-years later, when the probability exceeds 50%, because it's a random occurrence and there's nothing stopping it from happening after ten or a trillion throws of the dice. But I'll still stand by the logic of my original back of the envelope number; insomuch as the risk is proportional to the population, we should expect the next global pandemic twice as fast as the last one, and I think there's a good chance many of us will be alive to see it (as opposed to the gap between the Spanish Flu and COVID-19, where the survivors of the first were infants for the last and centenarians for this one).