So interesting. I am grown up in East Germany and as a student I often traveled by train around Berlin, direct next to the Berlin Wall. Always I had the feeling that the train was packed with thoughts of how to overcome this insane bulwark. Finally it came down in 1989.
The fall of the Berlin Wall, like 9/11, is one of those gigantic moments in history, full of meaning and emotional weight. I have no doubt that seeing that wall built up an enormous amount of energy and thoughts about its fall in the minds of the people on each side of it. It was a symbol, like the WTC. And like the towers, it came down.