Bitcoin long term cycles are recurring patterns of price fluctuations that Bitcoin experiences approximately every four years. These cycles are intrinsically linked to the process of Bitcoin halving, a built-in feature of Bitcoin’s code that halves the mining reward every 210,000 blocks, roughly every four years. The halving events are believed to have a significant impact on Bitcoin’s supply and demand dynamics, as well as its narrative and adoption. Some analysts have proposed different models to explain and predict Bitcoin’s long term cycles, such as the stock-to-flow model, the lengthening cycle hypothesis, and the 16-year cycle analogy. These models vary in their assumptions, methods, and accuracy, but they all attempt to capture the essence of Bitcoin’s cyclical behavior and its potential future performance.