Productivity is not first about getting a lot of things done, but about getting the right things done.
If you are getting the right things done, you don’t necessarily have to be doing a large number of things.
In other words, you don’t have to be busy in order to be effective.
So don’t measure your effectiveness by how much you are able to do, but rather by what you do.
And, ironically, if you focus on the quantity of things you do, you will most likely fail to identify and execute on the things that are most important — that is, on the right things.