It's an interesting theory..the confidence level that a crash won't occur which is on the high and positive attitude of the general public at the moment which is quite low. I guess both have to be on the high for a single day event to happen as it was in 87' and 29'. What happened in 08' was as good as a crash just in a BIT longer term. Those single day events just cause the public to freak out and nothing else. I guess in 500 years there will be more accurate history of those events and become more predictable. Right now we can't build a stat around 2 numbers!