Venkatesh Rao@vgr*Makes note in little black of important tips*Quote TweetTren Griffin@trengriffin·Apr 23, 2016If you are ever worth $1B on paper or otherwise, follow this rule of thumb: buy $100M in US Treasuries as "do not go back to go" money.6:16 AM · Apr 23, 20163 Retweets16 Likes