As Forbes has concluded there are interestingly several common themes among today's billionaires. Forbes made the following deductions based on loose interpretation of today's over 600 self-made billionaires.
"Several billionaires suffered a bitter professional setback early in their careers that heightened their fear of failure."
Parents Had Math-Related Careers - Accountants, Small-Biz owners
Fall Birthdays - 42 born in September
College Dropouts - Bill Gates, Steve Jobs, Larry Ellison, Micheal Dell
Skull and Bones (Yale Secret society) - Eddie Lampert, Steven Schwarzman, Frederick Smith
Goldman Sachs - Eddie Lampert, Daniel Och