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The Right Way to Worry

After a year in which COVID-19 has suspended normal economic life around the world, humanity has acquired a new appreciation for risk. But simply acknowledging potential threats is merely the beginning of the process; the real challenge comes in deciding which problems warrant our attention, and in what order.

CAMBRIDGE – The reign of the dinosaurs was brought to an end 65 million years ago by an asteroid that crashed into what is now the town of Chicxulub in Mexico. Although this lump of rock and metal was not particularly large – probably about ten kilometers (six miles) across – it struck the Earth at more than 60,000 kilometers per hour (37,000 miles per hour), generating an explosion billions of times greater than that of the atomic bomb dropped on Hiroshima, and killing all life within 1,000 kilometers.

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