I haven't seen many calling for the 1966-1974 kind of cyclical bulls, where a top was made, a sharp correction followed, and then another leg up formed a double top. It seems to be increasing as a possibility.
How do you tell the difference between a healthy pessimism/panic and an unhealthy one? We certainly have doom and gloom longs here. Don't know how widespread it is, but it is hard to believe it isn't pretty widespread.
Market Data 
Markets 
AI
