Your paragraph about deflation and GDP muddles a few different issues and distracts from your main point. Even if prices drop due to productivity, there is stil

Your paragraph about deflation and GDP muddles a few different issues and distracts from your main point. Even if prices drop due to productivity, there is still good reason for monetary inflation, and population growth should drive total GDP growth, or everyone is poorer. But this is really off topic. I think what you mean is that cost of living should drop each year, and that is a good idea.