Has anyone written about the earliest origins of Softbank's massive war chest? You'd on occasion hear about Softbank in the late aughts but nothing worthy of n

Has anyone written about the earliest origins of Softbank's massive war chest? You'd on occasion hear about Softbank in the late aughts but nothing worthy of note. And then suddenly just like that it was everywhere. They hired Nikesh Arora who was let go just as swiftly as they hired him. As President & Chief Operating Officer of SoftBank Corp. Arora received over $200 million in compensation over the last two years" while at the head of Softbank's operations. This pay package made him world's highest paid executive.[1] Is there a rhyme to any of the stuff they do? Or is it on the whims and fancies of Masayoshi Son? Is there an exhaustive read somewhere, on all of this? [1] https://en.wikipedia.org/wiki/Nikesh_Arora#SoftBank_Corp https://en.wikipedia.org/wiki/Nikesh_Arora#SoftBank_Corp.