No, I got the point. And Osama was quite effective at terrorism. Though I think most of the credit goes to the US government and media. I don't believe it was an inside job, rather that similar motivations created similar outcomes: radicalizing war in the middle east.

If humans were rational, terrorism wouldn't work. Driving your car to work is more dangerous than taking the subway to the world trade center, even if the WTC was demolished every year. But we are afraid of what we fear, not what will actually kill us. There are a lot of people who are eager to exploit that cognitive defect.