Taking a quick look at this graph and one would think it is BTC price of the last months. It is the price of beginning of 2015! Very similar proportions and timing happened back then. Partially maybe due to the business wanting to put their gains in BTC so as to not have to declare them in their tax returns.
What is really happening is that the pressure of adoption is so great that traffic jams occur which shoot up the price until people take a step back. Then the capacity of bitcoin adoption expands at the same time that people take a break from the buying frenzy and we see a price drop. If history is a good teacher, we still can wait to buy in again and none of us have lost anything in the long run.
I am sure BTC won't be a bad investment for at least 5 years but anything that is not the Common Good is a bad investment in the long run. Money does nothing, people do everything. Remember, we will end poverty and war with a simple action every day. Casually telling one new person that now EVERYBODY can live a life of luxury in a Resource Based Economy.
Happy RBE!