These are significant changes that will have an impact on how the network handles new transactions. Upgraded systems will create a new coin. Those that do not comply will continue to use the outdated protocol. As a result, there are now two types of cryptocurrency. To make things clearer, consider 10 automobiles going along a road. One of the cars decides to make a right turn. Four other automobiles believe it's a good idea as well, so they turn right as well. The remaining five vehicles believe that turning right is a terrible idea, so they continue straight ahead. Instead of one group of automobiles driving in one direction, there are now two groups driving in opposite directions!