What Happens to Bitcoin After All 21 Million Are Mined?
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By ADAM HAYES
Reviewed By KHADIJA KHARTIT
Updated Dec 17, 2020
TABLE OF CONTENTS
The Supply of Bitcoin Is Limited to 21 Million
Bitcoin Mining Rewards
Effects of Finite Bitcoin Supply
Special Considerations
Bitcoin is like digital gold in many ways. Like gold, bitcoin cannot simply be created arbitrarily; it requires work to "extract". While gold must be extracted from the physical earth, bitcoin must be "mined" via computational means.
Bitcoin also has a stipulation—set forth in its source code—that it must have a limited and finite supply. For this reason, there will only ever be 21 million bitcoins ever produced. On average, these bitcoins are introduced to the bitcoin supply at a fixed rate of one block every ten minutes. In addition, the amount of bitcoin released in each of these aforementioned blocks is reduced by 50% every four years.
KEY TAKEAWAYS
There are only 21 million bitcoins that can be mined in total.
Once bitcoin miners have unlocked all the bitcoins, the planet's supply will essentially be tapped out.
Currently, around 18.5 million bitcoin have been mined; this leaves less than three million that have yet to be introduced into circulation.
Once all Bitcoin has been mined the miners will still be incentivized to process transactions with fees.
The Supply of Bitcoin Is Limited to 21 Million
In fact, there are only 21 million bitcoins that can be mined in total.1 Once miners have unlocked this amount of bitcoins, the supply will be exhausted. However, it's possible that bitcoin's protocol will be changed to allow for a larger supply. What will happen when the global supply of bitcoin reaches its limit? This is the subject of much debate among fans of cryptocurrency.
Currently, around 18.5 million bitcoin have been mined. This leaves less than three million that have yet to be introduced into circulation.
While there can only ever be a maximum of 21 million bitcoin, because people have lost their private keys or have died without leaving their private key instructions to anybody, the actual amount of available bitcoin in circulation could actually be millions less.
Bitcoin Mining Rewards
The first 18.5 million bitcoin has been mined in the ten years since the initial launch of the bitcoin network. With only three million more coins to go, it might appear like we are in the final stages of bitcoin mining. This is true but in a limited sense. While it is true that the large majority of bitcoin has already been mined, the timeline is more complicated than that.
The bitcoin mining process rewards miners with a chunk of bitcoin upon successful verification of a block. This process adapts over time. When bitcoin first launched, the reward was 50 bitcoin. In 2012, it halved to 25 bitcoin. In 2016, it halved again to 12.5 bitcoin. On May 11, 2020, the reward halved again to 6.25 bitcoin. This effectively lowers Bitcoin's inflation rate in half every four years.
The reward will continue to halve every four years until the final bitcoin has been mined. In actuality, the final bitcoin is unlikely to be mined until around the year 2140. However, it's possible the bitcoin network protocol will be changed between now and then.
The bitcoin mining process provides bitcoin rewards to miners, but the reward size is decreased periodically to control the circulation of new tokens.
Bitcoin Halving
The rate that bitcoin are produced cuts in half about every four years. Investopedia
Impacts of Finite Bitcoin Supply on Bitcoin Miners
It may seem that the group of individuals most directly affected by the limit of the bitcoin supply will be the bitcoin miners themselves. Some detractors of the protocol claim that miners will be forced away from the block rewards they receive for their work once the bitcoin supply has reached 21 million in circulation.
But even when the last bitcoin has been produced, miners will likely continue to actively and competitively participate and validate new transactions. The reason is that every bitcoin transaction has a transaction fee attached to it.
These fees, while today representing a few hundred dollars per block, could potentially rise to many thousands of dollars per block, especially as the number of transactions on the blockchain grows and as the price of a bitcoin rises. Ultimately, it will function like a closed economy, where transaction fees are assessed much like taxes.
Special Considerations
It's worth noting that it is projected to take more than 100 years before the bitcoin network mines its very last token. In actuality, as the year 2140 approaches, miners will likely spend years receiving rewards that are actually just tiny portions of the final bitcoin to be mined. The dramatic decrease in reward size may mean that the mining process will shift entirely well before the 2140 deadline.
It's also important to keep in mind that the bitcoin network itself is likely to change significantly between now and then. Considering how much has happened to bitcoin in just a decade, new protocols, new methods of recording and processing transactions, and any number of other factors may impact the mining process.
While large miners can theoretically initiate attacks that bends the consensus history to their likings, they also risk tipping off the market to their attack, causing a sudden collapse of the token price. Such a price collapse would render the miner’s hardware investment worthless, along with any previously-earned coins held long. In the case where manufacturing is highly concentrated, clandestine 51 percent attacks are easier to achieve.cryptocurrency bitcoin bitcoin lurk phoenix bitcoin bitcoin project bitcoin address bitcoin пулы moneybox bitcoin Indoctrinated in The Church’s dogma, Christianity initially refused to accept zero, as it was linked to a primal fear of the void. Zero’s inexorable connection to nothingness and chaos made it a fearsome concept in the eyes of most Christians at the time. But zero’s capacity to support honest weights and measures, a core Biblical concept, would prove more important than the countermeasures of The Church (and the invention of zero would later lead to the invention of the most infallible of weights and measures, the most honest money in history—Bitcoin). In a world being built on trade, merchants needed zero for its superior arithmetic utility. As Pierre-Simon Laplace said:
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Some of those premises are of course unrealistic, and are simply used to show what happens when there is a growing user-base and constant low-key source of new buyers against a shrinking flow of new coins available.bitcoin автосборщик etf bitcoin ethereum wiki algorithm bitcoin demo bitcoin
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This was back when the dollar was backed by gold, so the United States government wanted to own most of the gold, and limit citizens’ abilities to acquire gold. No such backing exists today for gold or Bitcoin, and thus there is less incentive to try to ban it.bitcoin sberbank exchanges bitcoin monero пул koshelek bitcoin demo bitcoin платформ ethereum mine ethereum
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