The answer is… none! But how many does your mind see? Ah, many more, right? Your mind wants to fill in those gaps with information that isn’t there, creating a pulsating illusion as it struggles between visual fact and fiction.
“Destroy your reputation. Be notorious.” –Rumi
This is why books are necessary. Charlie Munger loved to quote a line from an old machine tool ad: “The man who needs a new machine tool and hasn’t purchased it yet is already paying for it.” You’re already paying for the knowledge you need but don’t have yet.