最新报道:The Bitcoin network is approaching its 21 million supply cap, with over 19.7 million BTC already mined. Experts predict the final bitcoin will be mined around 2140 due to the halving mechanism that reduces block rewards every 210,000 blocks. Once all bitcoins are mined, miners will rely solely on transaction fees, estimated at $3.2 billion annually by 2025. This transition raises questions about network security, as some fear reduced miner participation could make the network vulnerable. However, proponents argue transaction fees will sufficiently incentivize miners, citing Bitcoin's growing adoption and potential fee market dynamics. The fixed supply is seen as a key feature maintaining Bitcoin's scarcity value.