I would argue that not being able to achieve the goals set out by the authors is the main hook behind their content in the first place. First, you read their stuff, and the advice sounds really good. Next, if you try really hard, you achieve about 50% of their instructions because you're just an average person living an average life with average-person-type restrictions on your time. Then, you go on another quest to get more information from people whose lives are nothing like yours because they've managed to achieve income streams that don't require them to hold down a full time job... by donating to their income streams for even more information that will undoubtedly be mostly useless to you as you crawl past that 50% you've already achieved.