The total number of Bitcoins is 21 million. This is programmed and cannot be changed. But many people don’t know that these 21 million coins can never be mined out.

Mining rewards are halved every four years. In the end, you will have to work hard to mine a few tenths of a coin, or even less. According to the mining mechanism of Bitcoin, as the difficulty of mining continues to increase, the cost of mining Bitcoin will become higher and higher in the future.

According to statistics, the annual electricity consumption of global Bitcoin mining has exceeded the total electricity consumption of some countries. This high energy consumption has also triggered concerns about environmental protection and energy sustainability.

Moreover, as the price of Bitcoin fluctuates, the benefits of mining become unstable. When mining costs are higher than profits, many miners have to choose to shut down or switch to mining other cryptocurrencies.

In addition, Bitcoin mining also faces policy risks and security issues. Some countries and regions have introduced policies to restrict or ban Bitcoin mining, and security issues such as hacking attacks and mining pool cheating also occur from time to time.

I believe that Bitcoin mining is destined to be a path full of challenges and uncertainties.