> No language feature (or library) exists in isolation (or at least it shouldn’t). Feature interaction is among the hardest of problems, and often underestimate

> No language feature (or library) exists in isolation (or at least it shouldn’t). Feature interaction is among the hardest of problems, and often underestimated both as a problem and as something useful The problem of feature interaction is not underestimated by anyone who has had to use C++ for any length of time.