All of this seems kinda legit, learning and be open and using both your experiences and your interactions with others to fix or reinforce your assumptions, but

All of this seems kinda legit, learning and be open and using both your experiences and your interactions with others to fix or reinforce your assumptions, but this is not what people usually expect to find in a book... I still have the feeling that there is a bit of greed here, trying to find shortcuts, this is not blatantly wrong but I have the intuition that this is a potentially harmful mindset, not unlike the Move Fast and Break Things mindset.