SoftBank's Vision Fund is the world's largest tech investor and has backed companies like Uber, WeWork, and Ola. The $100 billion is partly funded by SoftBank, with significant backing from Saudi Arabia's Public Investment Fund. The fund is most closely associated with SoftBank Group's CEO, Masayoshi Son. But the senior team is made up of a number of former investment bankers and technologists. Together, they're writing checks for billions of dollars and reshaping the tech landscape. Softbank's Vision Fund has set out to find the tech stars of tomorrow today.