The 4-year market cycle
After price bubbles in 2013, 2017, and 2021 bitcoin seems to operate on a 4 year cycle, separated by the "halving" events as determined by its blockchain protocol. It seems we are now past the bull market phase and are ending the cycle in a bear market.
Those of us that believe in bitcoin's long term future understand that its market must eventually grow many multiples to a size of several trillion dollars. Although no one can know the exact shape of this growth curve, a fundamental understanding and belief in bitcoin makes it possible to hold through and profit from it's infamous market volatility.
Many long-term believers hold their bitcoin throughout the 4 year cycles, but it is possible to accumulate a much larger stack of bitcoin by selling near the top of a cycle and re-accumulating near the bottom.
Of course, no one can call the top or bottom of a market, and we are all vulnerable to the emotions that the market creates within us, which is why education, foresight, and planning are so essential.