What happens in the past can not be compare with current situation, regarding bitcoin price. In 2013, bitcoin price crash because MT-Goc got hacked, and there is no any exchange get hacked today.
Bitcoin price has reached another milestone, what happen right now is simply a correction due to ICO shakedown after PBOC ordered the cessation of all initial coin offerings in China and mandating that active ICOs must return funds to investors. I am not sure, how this news could has big impact to bitcoin and its price drop back to $4150 right now. I am sure, it is a good chance to buy more bitcoins and altcoins.