While I don't disagree with the general notion that ideally the "natural" speed of a road should match the intended target speed, especially in the case of exis

While I don't disagree with the general notion that ideally the "natural" speed of a road should match the intended target speed, especially in the case of existing infrastructure changing the road design isn't always possible easily and/or quickly, and yet there might still be good reasons for lowering the speed on a particular stretch of road. So I still disagree with a blanket "well, then never post a speed limit that's lower than what people would drive at naturally".