I agree that a crash is not out of the question, but I think there is also quite a bit of fear-mongering in play.
There still are relatively safe investments out there and gotta diversify your investments anyway...
That is a big problem, it's hard to see through the "doom & gloom" that gets repeated over and over about how a crash is "imminent".
The thing is the same people predicting a crash now, were predicting the same thing last year, and the year before, and the year before...
And the ones who have "correctly" predicted crashes in the past, well maybe they did. But what about all their failed predictions? How long did they "predict" something like this before it actually happened? Anyone could say "we have a market crash coming in soon!" and if they say it long enough, eventually they'll be right.