Short answer to your title is yes. There are so many bubbles in many different market sectors, these might start a chain reaction and not only markets, derivatives, and economies will be exposed. Most large economies right now are failing after years of abuse, if the stock markets falls, it will be too late. Gold, silver, guns and bullets have the 4 precious metals, with water and food, and ways to collect/find said water and food.

Hope this helps ;)