> That graph does not show cassettes were responsible for that, it just shows revenue numbers. There are other possible causes. You don't mention any of these

> That graph does not show cassettes were responsible for that, it just shows revenue numbers. There are other possible causes. You don't mention any of these possible causes though. what? if you put forward a graph and someone else points out that the graph doesn't show what you say it shows, the person has identified that the graph is not relevant to the discussion. they don't now have the job of explaining the graph. the graph is not relevant. it just leaves the conversation.