Trader Brian Jones@MasterBJonesYou have to be a professional investor ‘to do well’: Bruce Greenwald https://finance.yahoo.com/video/professional-investor-well-bruce-greenwald-090000055.html?soc_src=social-sh&soc_trk=tw&tsrc=twtr… via @Yahoofinance.yahoo.comYou have to be a professional investor ‘to do well’: Bruce GreenwaldColumbia Business School Professor Bruce Greenwald joins 'Influencers with Andy Serwer' to discuss the stock market and modern investing.3:21 PM · May 28, 2021·Twitter Web App2 Retweets8 Likes