Yeah, but read the very top of that post for his updated thoughts. The problem with manually inlining large functions is that they make code impossible to follo

Yeah, but read the very top of that post for his updated thoughts. The problem with manually inlining large functions is that they make code impossible to follow or reason about, which over time means that they turn into spaghetti code because people get lazy about reusing pieces from random other places in the same function. His later addendum is important not to omit, because this is really the key to more reliable code: > The real enemy addressed by inlining is unexpected dependency and mutation of state, which functional programming solves more directly and completely. However, if you are going to make a lot of state changes, having them all happen inline does have advantages; you should be made constantly aware of the full horror of what you are doing. When it gets to be too much to take, figure out how to factor blocks out into pure functions (and don.t let them slide back into impurity!).