 The book takes a look at how electronic trading replaced the trading floor of screaming brokers, slamming telephones and hysteria-inducing ticker tape, and how that change impacted the market.The speed of data is a major theme in the book; the faster the data travels, the better the price of the trade.Lewis claims access to this fiber optic cable, as well as other technologies, presents an opportunity for the market to be controlled even more by the big Wall Street institutions.