[Analysis Suggests Bitcoin's Four-Year Cycle May Face Structural Divergence] The validity of Bitcoin's four-year cycle has become a focal point of discussion. Some argue that the cycle should not extend to 2026, as ETFs have already absorbed $57 billion in capital inflows. On the other hand, opponents believe the cycle remains intact, with historical patterns showing coincidental timing, such as Bitcoin's local bottom price of $80,524 on November 21, 2025, coinciding with the low of $15,460 on November 21, 2022. The market is closely watching the U.S. Crypto Market Structure Bill hearing scheduled for January 15, 2026, which could become a critical turning point for the cycle.