Masayoshi Son, founder and CEO of SoftBank Group, has a lot of crazy ideas. He believes robots with IQs above 10,000 will outnumber humans in 30 years. He considered taking SoftBank private in what would have been the largest leveraged buyout of all time. He raised $45 billion for an investment fund in 45 minutes. He wants to launch a second, record-breaking Vision Fund before even closing his first one.