We know that the Bitcoin network regulates its difficulty according to its calculation capacity, the difficulty being low if this capacity or computational power is low and increasing as more miners and computers enter the network. If this were not the case, as the Bitcoin network grows, the ease of mining would grow and much more bitcoin would be mined faster, something that Nakamoto wanted to avoid by making sure that the difficulty was regulated according to the capacity of the network.

With the drop in prices in which we have found ourselves in this bear market since November 2021, many miners have stopped finding this activity profitable and have decided to turn off their mining rigs. Added to this, the increase in energy prices in Europe and the United States led to even more miners deciding to cease their activity completely.

When this computing capacity is lost in the network, it is regulated, so that the reward for mining is stable based on the hashrate (processing capacity) of the network.

Less miners >> Less computing power required >> More reward.

More miners >>>> More computing power required >>> Less reward.

Mining difficulty was down 7.23% on December 6th and will last for approximately two weeks before updating again. The value of a terahash, a unit in which computing power is measured, per second per day rose from $59.07 to $64.03. This refers to the return that a miner can expect for that computing power.

In November 2021, with bitcoin at all-time highs, each terahash was worth $416 because the reward to miners was much higher than now, something that greatly harms activity, and therefore the security of the network.

The measurement of this value, called hashprice, is highly related to the value of Bitcoin and to changes in the network's mining difficulty.

https://data.hashrateindex.com/chart/bitcoin-hashprice-index

This, on the one hand, is good for miners, since it increases the incentive they receive for their work certifying network transactions, but on the other, it is bad for end users, since the fewer the number of miners in the network, the greater the number of miners in the network. centralization and greater possibilities of being corrupted. Although in practice this is still very difficult, since the total computing capacity is still high, the ideal situation in the Bitcoin network is that there are as many miners as possible in it.