I love these comments on Hacker News - Someone briefly skims the title and the first couple sections, and then makes some snarky comment about how unrealistic the article is. For some reason, these comments are almost always the most upvoted as well. You do have 8 hours of free time a day, and the whole point of the article is learning how to most effectively utilize those things. The article even has a name for all the things that get in the way like laundery, dinner, relationships, etc.