Aren't we already closer to "blood in the streets" than "cheery consensus"?

Financial people love to say that the stock market grows at roughly 9% historically, and that is money in the bank. But if you look at any historic chart these days, the massive amount of wealth and trading volume that has been generated over the past 10 years has made it obvious that we are in uncharted waters for future equities growth.

The Internet has been the game changer here. It has allowed access to equities to a class of investors that really never had access purchase these types of assets. This changed the game.

Cuban is probably right when he tells us to be weary of the market, but I think there are different reasons to be weary than those he states.