Observing previous market movements may help us predict the current one. Naturally things are very different in 2019 than they were in 2013 but the chart patterns show similarities.
One thing that is guaranteed with Bitcoin is price corrections. When it surges things happen fast but when it corrects the price drops even quicker. At the moment BTC has corrected 42 percent from its high this year. A correction of this magnitude had been predicted by many a couple of months ago and it was largely expected by analysts that prices would drop to 8$k.
but this has all happened before, and will all happen again.