Is the Bitcoin 4-Year Cycle Still Valid, or Is This Time Different?

The article argues that Bitcoin’s traditional four-year halving cycle remains visible but has been materially weakened by institutional adoption, spot ETF inflows, developed futures/options markets, and macro liquidity dynamics. Since the April 2024 halving, miners’ issuance now represents roughly 0.8% of supply, while U.S. spot ETFs have absorbed over $120 billion, making institutional flows a dominant price driver. The author notes the October 2025 peak near $125,000 followed by a deep pullback and that 2025 was the first post‑halving year to end negative, highlighting greater sensitivity to Fed policy, a stronger dollar, and reduced retail euphoria. Conclusion: the cycle is attenuated — still relevant psychologically and over long horizons, but less reliable as a short‑term trading signal amid Bitcoin’s maturation.