A river of suits coming down 7 escalators of Bankers Trust at 130 Liberty street on Friday at 5 pm was an almost scary view. The massive size of workforce alone was enough to shock, but if you think about the meaning behind it, it offers a very different lesson. Hundreds, and at times thousands of employees at large banks and brokerage firms, crammed inside a number of floors at generally aesthetically pleasant buildings was a sign of strength. Even after mergers and acquisitions made Citi the largest banking employer, the ‘too big to fail’ concept wasn’t going to motivate firms to get smaller. IBM’s training programs of the 1990s were legendary, as they built unusually effective teams. Bullpens were becoming more popular not just on trading floors, but also in almost any large sales environment. Human curiosity wasn’t only limited to travel to other countries to see other cultures. It also had an impact on how people in every metropolitan city interacted. A true American metropolis, like New York, would see people from Europe, Asia, Middle East and Africa work in constant and direct proximity of each other, enriching their outlook on the way others lived and functioned.