I'd have to respectfully disagree with you, understanding that it's not an investor driven event. (Unless you count the population of China & India which just over 3 Billion, as "Investors") ... Dwindling supply, high demand, the 'fear' talk of regulation, and suppression during the beginning phase of Bitcoin drove down pricing (that and a lack of knowledge & understanding @ that time). Today, eh... "Not so Much"! As well it still is trading "sideways" so 'No Bubble'.