The Stock-to-Flow (S2F) model is a powerful conceptual tool used to understand Bitcoin’s scarcity-driven value. By comparing the existing supply of Bitcoin to its new production rate, S2F helps explain long-term price trends — especially in the context of Bitcoin halvings. While it's not a perfect predictor, the model remains influential in crypto valuation discussions. Users should apply it alongside other tools and maintain a balanced, security-minded approach to investing in Bitcoin and other digital assets.