Articles like this are proof that there isn't a bubble. The defining characteristic of bubbles is irrational exuberance—everyone feeling that the sky is the li

Articles like this are proof that there isn't a bubble. The defining characteristic of bubbles is irrational exuberance—everyone feeling that the sky is the limit. Instead, we have an environment where articles like this come out on a regular basis and I probably hear "when this bubble pops" daily. Everyone is afraid that we're in a bubble. So we're probably not in one. Be greedy when others are cautious. Since the pundits are cautious, it's probably a good time to invest.