We can observed in the price history of bitcoin that it keep rising and falling repeatedly. Thus we can say that history is keep repeating itself and I believed that buying bitcoin is still profitable in the long run. But for better return of investment, altcoin is the better choice.
History has not finished repeating itself anyway and it is normal to always see market move in this way based on the fact where it is highly speculative in nature. It is normal to have a huge correction after a bull run, but afterwards and how the trend will eventually play out is best known with time, and I would rather just always follow current trends, and monitor it than making assumptions for the future based on past trends.
I have always believed in current conditions and I have always discarded the idea of trying to use the past to make future decisions because you may just be lucky at some point, but so many times, I have seen it backfire.
When we do not have any specialized tools to predict the markets, why not we go for using the past to predict the future. Something is better than nothing. Nevertheless, I still believe we still have more room to fall and more room for growth in the long run and how far this would take is something we can only know over time.