Not for the first time in his career, a problem of resources was preventing Masayoshi Son, the billionaire Japanese technology investor, from realising his ambitions.
His company SoftBank had recently stretched its balance sheet to splash $32bn on UK chip designer Arm. But the serial dealmaker, who believes in his ability to see into the future, wanted more. So where would Mr Son find the big sums still needed to act on his latest vision of a world where humans, devices and the internet are more closely integrated?
The answer arrived on 13 planes. They carried a 500-strong state delegation from Saudi Arabia to Tokyo last month. Leading it was the reformist Prince Mohammed bin Salman al-Saud, known by his initials MBS.
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