You can both be right! Most buildings could be finished quickly, but at any given point time there will be more delayed buildings than ones being quickly constr

You can both be right! Most buildings could be finished quickly, but at any given point time there will be more delayed buildings than ones being quickly constructed. This is for the same reason that most people who go to prison in the US do so for a sentence less than six months, and yet the prison population at any point is mostly people with > 10 year sentences.