I was playing a game where I was very aggressive, and I took over a civilization with the Pyramids already built. I at this point realized I could expand to an insane degree, with putting 1 military unit in each city. I did this quickly, and amassed up something like 40 cities. Eventually my units striked off, but I was left with 1 unit in each city to defend while still having a loss of hundreds of gold a turn, with 0 gold. Normally you would expect this to kill research and eventually the civilization gets taken over. I however, was able to switch to representation, and have many scientist (where there were library) and citizen specialists. This allowed me to have greater research than anyone else. By the time I had built enough markets, courthouses, etc to get the civilization to get into the plus, I had a huge tech lead. I'm sure someone noticed this before, and possibly posted it here, but I haven't seen this. Anyone have any input on this?