In the beginning of bull season in the middle of 2016, BTC was crashed from $777 to $470, that mean dumped about 40% and after that the price keep rally to new high. Afterwards, we have seen another crashed of BTC while on bull season, so according that history when bull market is normal BTC dumped up to 50% and then need a few week /month to bounce back. It seems unfair if the bear market lasts for 3 years but the bullish season only lasts less than 1 year, so my prediction the bull market will continue.