[joemoon]

I think you skimmed the post. The memo is to his employees and he specifically addresses whether or not the advice is applicable to non-entrepreneurs (spoiler: he thinks it is).

I don't necessarily agree or disagree with the advice, but it's clear that it is intended for "people who do the actual work".

[kabisote]

I reread the post and I agree that the advice is also applicable to non-entrepreneurs (e.g. hackers, hobbyists). What became clearer is that his advice is to pursue multiple goals, not to juggle multiple tasks at once.