> interested to see what kinds of systems this could be used in. if you, the author, don't know, then the likely answer is: "in none of them" From the outside

> interested to see what kinds of systems this could be used in. if you, the author, don't know, then the likely answer is: "in none of them" From the outside, this is strictly inferior to PID controller. If there are advantages, you really want to highlight them,