A bubble?

Lots of talk about the stock market being a bubble.

Not by my definition.  A bubble is when it just blows up and everyone joins in and everyone is talking about a new day. 

Overpriced is not the same thing as a bubble.

By my standards, which basically consist of "I know a bubble when I see one," this isn't a bubble.

Not to say it won't correct 10 or 20% or something like that.  It could even correct by 50% (which actually normally would be my definition of a bubble.) 

I just don't see the insanity.