Bitcoin Cash is the result of a long-running argument between different factions of the Bitcoin community. The argument is about scalability. As Bitcoin has grown, the transaction speed of the network has become slower and slower. The number of transactions on the block-chain has increased exponentially as more people use the network. The size of each block has not grown with the number of users. This is called the scalability problem. Over the years many investors and miners have argued for an increase in the blocksize to facilitate faster transactions.