it will be impossible from the number of investors and to the quite couple of coins they are holding so it is impossible to make bitcoin fall down to 50$. Bitcoin is quite familiar nowadays around the world. It has already establish that most of the investors are earning. Not only just earning some of them got richer. They took the risk of buying something that is not useful. A digital currency where you can even use to buy a product or goods but rather earning it is possible. So the risk become their profit and they are already rejoicing it over and over again. I hope one day i could participate on bitcoin and join in investment.