[keithwhor]

... is this a joke? The article covers this in almost exactly these words. I wonder how often HN commenters actually read the full text of the article they're commenting on?

> There are, of course, some good reasons why we might be hesitant to pursue multiple interests. One is the fear that we might spread ourselves too thinly if we devote ourselves to more than one avocation. With a divided attention, we would fail to achieve success in any domain – the idea that the “Jack of all trades is the master of none”.

[octosphere]

Oops, my bad. You are right, I didn't read the article fully and presumed it didn't talk about spreading oneself thinly. Thanks for pointing it out ;)