An interesting phenomenon: Bitcoin's price fluctuations seem to follow some kind of magical timing pattern. Looking at the chart from 2013 to now, this actually turns out to be true.

Viewing over more than ten years of data on a logarithmic scale, you will find that Bitcoin has gone through three relatively complete bull and bear cycles. The first wave was from 2015 to 2018, with a rise to the bottom in 2015 and a peak at the end of 2017, followed by a correction in 2018. The second wave started in 2019, with an upward phase from 2019 to 2021, reaching a new high in November 2021, then correcting and declining in 2022. The third wave began in 2023 and is still in an upward channel.

Even more interestingly, there seems to be some rhythm hidden between these cycle points. Taking all the bull market tops and bear market bottoms' dates—December 17, 2017; November 10, 2021; October 7, 2025—these are the bull market highs; January 14, 2015; December 15, 2018; November 22, 2022—these are the bear market bottoms—and then subtracting them pairwise, they all revolve around the number 1430 days. The margin of error is astonishingly small.

What does this imply? Bitcoin's four-year cycle might not be a coincidence but an inherent rhythm of its operation. Approximately every 1430 days, the market completes a transition from bottom to top or top to bottom. Continuing this pattern forward, the time window for the next bear market bottom can also be roughly estimated.

Of course, this doesn't mean that just knowing the calendar guarantees profits. The market is always more complex than data, but this kind of periodicity is indeed worth the attention and validation of crypto enthusiasts. Sometimes, the simplest patterns are the most revealing.