William Pesek is an award-winning Tokyo-based journalist and author of "Japanization: What the World Can Learn from Japan's Lost Decades."
You know the world is really upside down when Masayoshi Son decides to become a day trader.
Opinion
Victory lap makes SoftBank's Masayoshi Son look tired
Luck, not genius, helped Japan's iconic venture capitalist to first-quarter win
If Son's big plan is loading up on tech blue-chips already at Fed-inflated valuations, he should reconsider. (Photo by Shihoko Nakaoka)
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