[ath3nd]

That's great that you have your own definitions of a bubble. However, we are generally talking of a financial/economic bubble, which is pretty clearly defined: https://en.wikipedia.org/wiki/Economic_bubble for quite some time.

One just need to ask one question: "is there a big amount of companies in a specific sector that are valued far above their returns". If that answer is yes, that means we are in a speculative bubble. The current insane valuations of unprofitable companies point to the largest speculative bubble ever to exist. I can't wait for it to pop faster already so there are less articles like this.

[mergy]

There you go -

"is there a big amount of companies in a specific sector that are valued far above their returns". If that answer is yes, that means we are in a speculative bubble."

Pretty much.