Key takeaways
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Bitcoin is approaching a major supply milestone.
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The final coins will take more than a century to be mined.
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Shortages will influence prices, but risks remain.
Bitcoin is approaching a historic milestone that indicates it is reaching the end of its tightly controlled supply: the mining of its 20 millionth coin.
At the current rate of block production, Bitcoin miners will reach the threshold within days. This means that they have already created more than 95% of the total Bitcoin that will exist.
The milestone has renewed debate among investors and analysts about Bitcoin’s long-term supply dynamics, its price trajectory and how the network will perform as the pace of new issuance slows.
Bitcoin’s underlying protocol limits the supply to 21 million coins.
The network issues new tokens approximately every 10 minutes as miners validate transactions and add blocks to the blockchain.
However, the pace of new emissions slows over time.
The network protocol roughly halves the reward miners receive for each block every four years in a process known as “halving,” a mechanism designed to gradually reduce the flow of new coins entering circulation.
Because of that timeline, producing the last million Bitcoins will take much longer than the first 20 million.
The network has generated almost all of its supply in the roughly 17 years since its launch in 2009, but miners are expected to mine the last coins around 2140.
As the supply of new Bitcoin slows, attention is increasingly focused on how the network will support the miners who secure it.
Currently, miners earn income from both newly issued Bitcoin and transaction fees paid by users.
Over time, the system is designed to rely more on transaction fees to compensate miners.
Some fear that if network activity remains limited, fee revenue alone may not be enough to sustain mining operations, which could erode incentives to secure the blockchain.
Others argue that growing adoption, higher Bitcoin prices, and the development of a competitive fee market will largely offset the dwindling supply of new coins.
The upcoming offering milestone also highlights Bitcoin’s scarcity, a feature many investors consider critical to its value proposition.
Many Bitcoin loyalists argue that if demand continues to grow while new supply slows, the imbalance could support higher prices in the long term.
Historically, Bitcoin has experienced strong price swings around events that reduce new supply.
Past halvings have coincided with sharp increases in the price of Bitcoin and periods of increased volatility.
