AI bubble inflated by SoftBank CEO who once threatened to set himself on fire for…

(Bloomberg Opinion) – Masayoshi Son is man of extremes. His $20 million bet on Alibaba Group Holding Ltd. became the most successful of all time when it swelled to more than $70 billion after a decade. He also lost $70 billion of his net worth in the dotcom crash, but then managed to raise one of the biggest investment funds of all time – the $100 billion Vision Fund – in 2017. The 67-year-old has been on a roller coaster that would put most mortals in therapy for life.