I absolutely loved this article. Don't get hung up on the "10x", read it as "good". All the characteristics Salvatore describes are the characteristics of every good developer I know, and that every developer should strive for.
They make you a better artisan, but also increase your productivity. Who cares if it's 10x, 100x or 2.5x? The important bit is growing to your personal full potential.
One thing that it's missing from the post is a bit of focus on how good developers (and indeed good leaders) concentrate on maximizing their impact. Not only you want to be fast and reasonably accurate, but also make what you do matter. Sometimes shaving down compilation time by a couple of minutes will save each developer in the team two minutes multiple times a day for years, for example. Not all productivity wins are obvious.
One thing that it's missing from the post is a bit of focus on how good developers (and indeed good leaders) concentrate on maximizing their impact. Not only you want to be fast and reasonably accurate, but also make what you do matter. Sometimes shaving down compilation time by a couple of minutes will save each developer in the team two minutes multiple times a day for years, for example. Not all productivity wins are obvious.