“Why are the letters on the keyboard arranged like this? It feels a bit strange to use,” my little nephew practicing using the keyboard said to me.Sometimes when we play games, we complain that the key settings in the game don’t fit the human mechanics. We looked up some information and found out that the current keyboard layout was invented 155 years ago. With the changes in how we use keyboards and different usage scenarios, this type of keyboard is probably no longer suitable. Everyone has different hand sizes and habits, and the length of our five fingers varies. As a random example, the little finger is the least flexible among the five fingers, yet some game scenes require us to manage four keys simultaneously using the little finger. Clearly, in many situations, the current keyboard layout has become difficult to meet the diverse and personalized needs of users.