[malandrew]

Yeah. Air keeps getting pumped in. It's unlikely that the Facebook IPO not blowing up on the first day will be enough to let out all the air of the bubble or at least let it out faster than it is getting put in. The truth is that the market for all other types of equity and debt based securities is pretty shit right now and that tech startups are relatively attractive psychologically to investors because they provide hope and the dream of a better future. Most other investment types involve a lot more cold and calculating decisions and don't benefit from irrational investment behaviors.

[greendestiny]

I understand, but it seems to me that bubble used to mean something more than just overvaluation. Specifically unsustained self fulfilling growth followed by a pop.