For example, if you invest $3 million in each of four companies, hoping that two or more will reap a windfall, your probability of success is barely over 50 percent.

• 举例来说，如果你在四家公司各投资300万元，希望至少两家以上的公司可以获取暴利的话，成功的机率大概就只有50%25左右。