Fooling Some of the People All of the Time is the gripping chronicle of that revealing saga. Page by page, it delves deep inside Wall Street, showing how the $6 billion hedge fund Greenlight Capital conducts its investment research detailing the maneuvers of unscrupulous companies, greed-laden executives and the previaling orthodoxies of Wall Street leading up to the precipitation of the 2008 financial crisis. It is a compelling read.