beginning, thomas edison, alexander graham and, george westinghouse, all of the individual inventors, karl benze inventor of the first really workable internal combustion engine. and of course, the wright brothers with their airplane. these were all independent entrepreneurs, then we went into the 20 century and during most of the 20th century, we had a diminished role of individuals and an increased role of corporations. then, the individual came back in the late 19th century, and the late 20th century, with bill gates, microsoft, steve jobs, apple, mark zuckerberg, facebook. and we had a return of the role of the individual inventor. brian: what you think of the stock market? and what impact does that have on making money, building things, incentives, inventions? robert: the stock market is an essential tool to the modern economy. it allows people who have innovative ideas to obtain the funding to build the plans and equipment and put their ideas into fruition. the stock market is also a source of great wealth, and a source of some of the income inequality that we have between the top 1% and