This article provides an in-depth analysis of Bitcoin's circulation, focusing on its limited supply of 21 million coins. It addresses the current number of Bitcoins in circulation, the remaining ones to be mined, and the implications of mining completion for the ecosystem. Key topics include the role of halving, mining dynamics, and the impact of lost or stolen Bitcoins. The article caters to enthusiasts and investors by exploring Bitcoin's scarcity, security challenges, and potential for future growth. Highlighted keywords include Bitcoin, mining, supply, scarcity, transaction fees, and security.