Why do we need mining? Why do we need a mining pool?

Just like gold can be exchanged for food, Bitcoins obtained as rewards from Bitcoin mining can also be exchanged for cash. As more and more people participate in mining, they will find it increasingly difficult to obtain rewards. At the same time, more and more people are discovering that Bitcoin can be profitable, and more people are paying attention to it, and its value is also pushed up by everyone.

The mining reward mechanism of the Bitcoin system solves the problem that each node is equal and has no obligation to serve everyone, because as long as you pay resources and computer resources, you will get rewards from the system. The more you work, the more you get. The system runs automatically and no one can tamper with it. This is fair. Everyone can get benefits through their own efforts. This is the universal gravitation of interests to human beings, and it is also the original motivation for human beings to do something from beginning to end. Rewards have become a source of strength, constantly motivating more people to join in the construction and maintenance of this system. It is because of mining that there are a large number of miners to ensure that this system is immortal.