Lol. In the book (The Art of Not Giving a F***), Manson focuses more on acquring the ability to not get hung up on things that you cannot control, like other people's opinions or diehard beliefs. They only affect our happiness (or how we choose to live) if we allow them to affect us. The book is about understanding the important things, prioritizing things that matter and dropping things that really just waist our time, like arguments that have no end in sight, no settlements or compromises, whether based on objective facts or subjective opinions.
At some point it becomes more beneficial to simply nod and smile and let people happily go about doing things their own way. This applies to aiming pool shots as well. If a newby spends a few days with any particular aiming method, and they find themselves not making progress, it's a lesson learned....find another method. If you practice every day for a couple of weeks, and you aren't making obvious progress toward improvement, you are probably doing a lot of guessing, a lot of trial and error. At this rate your brain will require a few months, a few thousand shots before you become proficient. Or maybe you try a method that works great for you immediately, despite others saying it takes a while to figure it out and get it working. Regardless, it's a personal journey that you make. It has no effect on anyone else. Only you can decide the true value or validity of whatever it is you are doing to improve your game. What other people think or believe should really be of no concern. Everybody here can make up their own minds based on their own experiences in their own time.