As we all know, the calculation of mining return period is affected by various factors, such as currency price, electricity price, mining machine price, mining machine computing power and power consumption, whole network computing power, difficulty growth, and currency development prospects.

At present, all the return periods we can calculate are static return periods.

When calculating the return period of the mining machine, the static full network computing force data is used, which means that the whole network computing force and mining difficulty remain unchanged by default, but the reality is that both are dynamic.

When calculating the actual return period of the mining machine, we can focus on 2 factors:

1、 Difficulty

Simply understand the relationship between the difficulty and the computing power of the whole network. The difficulty is determined by the computing power of the whole network. As the computing power increases, the difficulty increases; vice versa. Increase in difficulty, which affects the calculation of the number of bitcoins dug up in the next adjustment cycle.

The factors that affect the increase of difficulty are as follows:

1. Iterative updating of mining machinery and equipment, and the emergence of more powerful mining machines.
2. With the rise of the price of Bitcoin, more and more people join the mining industry, resulting in a significant increase in computing power.
3. Occurrence of specific events. For example, Bitcoin is about to start hard forking, and some people will be ready to buy mining machines in advance.

As time goes on, more and more new mining machines will participate in the competition of mining, because mining machine manufacturers will not stop the pace of production, and at the same time, old mining machines will gradually shut down and exit.

2、 Currency price and development space

Bitcoin, as a wind vane in the blockchain field, is not under anyone's control and can ensure the anonymity of currency ownership and transaction circulation. At present, it is the digital currency with the highest recognition and the most purchasing power.

Currency price is the biggest uncertainty factor in mining. The rising currency price will increase the mining income, but at the same time, it will also attract more funds into the mining industry, which will increase the overall network computing power and mining difficulty; The currency price is horizontal, and the calculated static return period of the mining machine has great reference value; If the currency price drops, many mining machines with poor performance will face the risk of shutdown. The computing power and mining difficulty of the whole network behind the old mining machine will be reduced, and the mining revenue of mining machines in operation will rise until the revenue rises to a dynamic balance position.