I will have to say that is argument is valid. Here's why:
1) He's pretty cute. But sorry ladies; from what I know, he has a girlfriend.
2) We rely heavily on our feelings...especially us women. For instance, it takes me a very long time to get over an initial bad feeling about someone. I admit, it's hard to trust this person personally. Sometimes my intuition is correct, sometimes its not. Usually if I'm right, I'll find out fairly quickly and say, "I knew it!"
I don't want to ruin his book/ TEDx presentation. Feel free to investigate for yourself. :-D