It’s a tradition that goes back to the early days of the U.S. space program: Astronauts write personal letters to their loved ones, to be delivered only if they don’t return from their perilous journey. So last summer, Amazon.com Inc. founder Jeff Bezos, who reveres such rituals, wrote his own heartfelt goodbye to his girlfriend Lauren Sanchez on the eve of his historic ride on a Blue Origin rocket. But then, on the morning of the launch, Bezos couldn’t resist. With colleagues and crewmates milling awkwardly around them, according to a person who heard about the exchange, he handed Sanchez her letter in a grand romantic gesture.
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