Masayoshi Son is already one of the Japan's most successful businessmen, and now he's making his biggest gamble yet: To invest a record $100 billion in the technology that will power our future. This week, Bloomberg Technology's Peter Elstrom and Brad Stone trace the life of the billionaire, from his childhood as an immigrant and outsider in Southern Japan to the huge risks that Son took to grow SoftBank into an ever larger company. Peter and Brad also play some old tapes of Son from 30 years ago, back when he was a relatively unknown entrepreneur, that have never been released before.

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