transactional, this and this, but if you boil it down, what we are saying is the future is unknown and unknowab unknowable. so you try to learn an exquisite amount of detail about what will happen because that gets into prediction. you are trying to understand the relationship of all of the variables in the world that are acting when you're there. then the complexity part of it also means constantly changing. the world on the left with the complicated world. the world on the right is a complex world. the difference between a complicated system and complex system is a swiss watch is complicated. okay. but a complicated system, you can take the back off that swiss watch and eventually you can figure out how it works. you look at it and first it looks very complicated. springs and gears and all that but eventually you figure out what this gear does. what that spring does, et cetera. and you can eventually figure it out. and if it is a complicated system, once you figure it out, its outcome is generally predictable and it is repeatable. in other words, that swiss watch is very complicated, but every time you