Michael Goldberg, 41, who runs Berkshire’s insurance operations and occupies the office next to Buffett’s in Omaha, thinks that he saw people as smart at the Bronx High School of Science, “but they all went into math and physics.” Buffett’s intellectual power is totally focused on business, which he loves and knows incredible amounts about. Says Goldberg: “He is constantly examining all that he hears: ‘Is it consistent and plausible? Is it wrong?’ He has a model in his head of the whole world. The computer there compares every new fact with all that he’s ever experienced and knows about—and
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