While there are a lot of cost-control measures, just about everything you listed except the first item is pretty small - it's only in the aggregate that most of

While there are a lot of cost-control measures, just about everything you listed except the first item is pretty small - it's only in the aggregate that most of those measures make a big difference. In addition while this is a contentious subject telling people to "reconsider your certainty [...] if you don't know basic facts" is needlessly confrontational.