昨天請教，比特幣挖不到礦之後怎樣運作沒人知道答案， 後來大千study169網友去問ChatGPT， 得到一個挺完整的回複， 應該是正確的。 轉過來做個交代。
簡而言之， 挖礦的挖不到比特幣之後， 礦工必須通過收取交易費來維持比特幣運作。
嗬嗬， 還沒習慣去問ChatGPT， 這玩意還真有用。 以後有啥問題先找AI.
What is Bitcoin Halving?
Bitcoin halving is an event that occurs approximately every four years (or every 210,000 blocks mined) where the reward that miners receive for mining a new block is cut in half. The halving is part of Bitcoin’s code and was designed by Satoshi Nakamoto to control the supply and simulate scarcity, similar to precious metals like gold. The main impacts of a halving event are:
- Reduced Mining Rewards: The reward for mining a block is halved, which reduces the rate at which new bitcoins are created.
- Controlled Supply: The halving controls the total supply of Bitcoin, limiting it to a maximum of 21 million bitcoins.
The reward started at 50 BTC per block in 2009 and has gone through three halving events:
- 2012: Reward reduced from 50 BTC to 25 BTC.
- 2016: Reward reduced from 25 BTC to 12.5 BTC.
- 2020: Reward reduced from 12.5 BTC to 6.25 BTC.
The next halving is expected in 2024, which will further reduce the block reward to 3.125 BTC. Halvings will continue until the block reward effectively reaches zero, which is expected to happen around the year 2140.
What Happens After the Year 2140?
Around the year 2140, the final Bitcoin will be mined, and the total supply will reach 21 million bitcoins. At this point, there will no longer be any block rewards in the form of new bitcoins given to miners. Instead, the Bitcoin network will rely on transaction fees to incentivize miners to continue securing the network.
How Will the Bitcoin Network Work Without Block Rewards?
Once block rewards cease in 2140, miners will be compensated solely through transaction fees paid by users of the Bitcoin network. Here’s how this is expected to work:
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Transaction Fees as Incentives: Users pay a fee to have their transactions included in a block, and these fees go to the miners. Miners will prioritize transactions that have higher fees, as these will be more profitable to process. This means transaction fees will become the primary source of revenue for miners.
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Network Security: Transaction fees need to be sufficient to cover the costs of mining and provide profit to incentivize miners to maintain network security. The sustainability of the network post-2140 will depend on the volume of transactions and the willingness of users to pay fees that make mining economically viable.
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Economic Model: It is assumed that, by 2140, the adoption of Bitcoin as a store of value and medium of exchange will have grown to the point where transaction fees alone will be enough to incentivize miners. As Bitcoin becomes scarcer, its value is expected to increase, and high-value transactions will likely result in higher fees.
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Network Effects and Efficiency: With advancements in scaling solutions like the Lightning Network, more transactions can be handled off-chain, potentially reducing the burden on the main blockchain while allowing for a more efficient fee market for miners. The expectation is that users who require on-chain transactions will be willing to pay significant fees for the security and finality that the Bitcoin blockchain provides.
Summary
- Bitcoin Halving: Occurs every four years, cutting the mining reward in half and controlling the total supply of Bitcoin.
- Year 2140: The last Bitcoin will be mined, and no new bitcoins will be created thereafter.
- Mining Without Rewards: After 2140, miners will earn income from transaction fees paid by network users. The sustainability of mining will depend on the fees collected and the value of Bitcoin.
The long-term success of the network will depend on the balance between transaction fees, Bitcoin’s value, and technological advancements that make mining efficient and economically viable without the creation of new bitcoins.
