Yes, I remember there was one intelligence test that I took some time when I was a little child. And, this person would ask different questions and one of the questions was, there’s a round, circular field and there’s something lost in it. How would you find it? And one way would be to… I… to go to the center and spiral out, and… but I must have thought of that and... but I didn’t like that because you would cross your path where you came in. So, I said: 'Oh well, you could do it by going like this on one side back and forth and then you go around over to here and go back and forth this way and you come out' and... then later, the experimenter said: 'Well that wasn’t the best answer, you should do this…' and I realized that whoever had designed the… the answers didn’t realize that you should take a much more complicated path that keeps you from crossing yourself. So then, I wondered about... how intelligent are the people who make these tests? But, it’s nice that they put geometry in. A lot of tests are just verbal.