I see it from the speculative point of view based on the philosophy of Wyckoff, and is that the bitcoin in 2014 began its accumulation stage until 2017 when it began its bullish trend phase, then the range that many see is 4 years , this does not mean that it should be repeated, because we are currently in the second phase of accumulation of the bitcoin, where we do not know how long it takes to accumulate the bitcoins to prepare to rise in price.
Some claim that it will last the same time, but you have to take into account the high volatility of the market, and that some times may vary, it may not last for 3 or 4 years, it may take less time to find your bullish trend again.
I agree. It could take
more time as well. Many are expecting a 2015-like reversal in Q3 or Q4 based on past performance, but I think it's a tossup. This early in an accumulation phase, it's impossible to tell. In fact, it's too early to even
call it an accumulation phase since we haven't established a bottom range like 2015 and we certainly haven't broken above it. Everyone is just assuming we will. Mid-2018 had the potential to be an accumulation phase too, but we know now it wasn't.
Wyckoff is the basis for my long term view as well. I like to see some confirmation of an accumulation/distribution schematic before projecting too far into the future. Repeating the 2015 model is possible but we'll probably see some deviation.