Before starting Amazon, Jeff Bezos was a vice president at D. E. Shaw, a global investment and technology development firm. At D.E. Shaw, Bezos worked on developing computer-based quantitative investment strategies. He was not a Wall Street investment banker or trader, as such, but rather worked on developing technology and algorithms for the firm’s trading and investment activities.
“Trust none of what you hear, half of what you read, most of what you see.” – Nassim Nicholas Taleb