Most people have some kind of hazy conception of how the stock market works. Stocks are simple to understand, and there are only so many of them out there to trade. But the bond market is a whole different beast, and in some ways it remains way behind stocks in terms of how technology has changed the industry. On this weeks' Odd Lots podcast, we talk to Bloomberg's Rob Elson, a former trader, who spent decades in the industry. During our conversation, he talks about how he got into the business, how his job changed from the early days to its end, and what he learned about what it takes to succeed in trading.