In the case of ‘Proof of Work’ cryptocurrencies, to keep the network safe, it’s necessary to keep a high hashrate. In simple terms, a hashrate is the speed at which a given mining machine operates. Crypto mining involves finding blocks through complex computations. The blocks are like mathematical puzzles. The mining machine has to make thousands or even millions of guesses per second to find the right answers to solve the block. So, the higher the currency hashrate, the safer the currency is against attacks of 51%.

For this reason, when a hardfork is about to happen there is a discussion about the safety of the future two cryptocurrencies. In this situation, many users say that the power of decision is with the miners. However, in my point of view, the cryptocurrency that prevails is typically the one with the most supportive community, and the miners will tend to follow.

The current discussion regarding Bitcoin Cash focuses on attempting to replicate the real vision of Satoshi Nakamoto. Many people believe that his vision is that Bitcoin has the function of being a global currency focused on the P2P transactions, for this reason, it is essential to increase the size of the block to improve the scalability. However, increasing the block size means making the blockchain heavier, making it centralized.