Flung across the Atlantic at five hundred feet a second, you submit to the folly because everyone else does. Your fellow passengers are reassured because you and the others around you appear calm. Looked at a certain way – deaths per passenger mile – the statistics are consoling. And how else attend a conference in Southern California? Air travel is a stock market, a trick of mirrored perceptions, a fragile alliance of pooled belief; so long as nerves hold steady and no bombs or wreckers are on board, everybody prospers. When there’s failure, there will be no half measures. Seen another way – deaths per journey – the figures aren’t so good. The market could plunge.

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