Many systems on this planet follow 4 year cycles.
Here is a comparison from 2014 and 2018 bitcoin price.
1D charts, roughly equal time scaling, from the peak on the left to the dip near the centre is a price difference of 500-550%
Indicators:
Volume Profile on the left
SMA, purple 50, pink 100, white 200
BullBearFilter Stochastic by CryptoRhythms
Here is a comparison from 2014 and 2018 bitcoin price.
1D charts, roughly equal time scaling, from the peak on the left to the dip near the centre is a price difference of 500-550%
Indicators:
Volume Profile on the left
SMA, purple 50, pink 100, white 200
BullBearFilter Stochastic by CryptoRhythms