Just asking ‘yes’ and ‘no’ questions does not take into consideration all the shades of grey. You do not get enough information. For example, “is this supplement good for me?”, doesn’t tell you if it is 5%, 10, 20 up to 100% beneficial. But if you asked, “on a scale of 0-100, to what degree would it be beneficial for me to take one tablet of this supplement today?” Or let’s say you are considering purchasing some books, but your wallet does not allow you to buy all, or you have limited time, and need to focus on what is most important right now. Instead of asking “should I buy this book?”, ask “”on a scale of 0-100, what the percentage of potential value I would get from reading this book within the next 6 months?” Then ask the same question of your other choices. Then you might ask “how likely am I to read it?”