Bitcoin's future: What happens when all coins are mined?

Many people associate Bitcoin solely with its price fluctuations, but deeper technical aspects, such as the difficulty adjustment in mining, also draw significant interest. This automatic adjustment ensures that a new block is added to the blockchain approximately every ten minutes, regardless of the total computing power dedicated to mining. This mechanism is crucial for maintaining the network's stability and predictable issuance rate.

The Bitcoin network relies on miners to verify transactions and secure the blockchain. Currently, miners receive a reward of 3.125 Bitcoin for each new block they add. This reward is halved roughly every four years in an event known as the halving. The process will continue until all 21 million Bitcoin are in circulation, an event projected to occur around the year 2140. After this point, miners will earn income exclusively from transaction fees paid by users.

Concerns about mining profitability are valid for individual miners. The process requires significant hardware and electricity costs. If the Bitcoin price drops, less efficient miners may cease operations. However, the difficulty adjustment automatically lowers the computational challenge, making mining profitable again, even with older equipment or reduced electricity consumption. This ensures the network continues to function.

Regarding the storage of Bitcoin, when users exchange fiat currency for Bitcoin, the seller receives the fiat money, and the Bitcoin is recorded on the blockchain. Users store the access keys to their Bitcoin in a digital wallet. If Bitcoin is held on a cryptocurrency exchange, the exchange manages these keys. The decentralized nature of Bitcoin is often contrasted with central banks. While central banks can provide liquidity during crises and aim to stabilize prices, critics argue they can also expand the money supply to the detriment of savers and sometimes fuel economic problems like inflation or asset bubbles. Bitcoin's global, decentralized network, however, is designed to prevent arbitrary money creation.