Another cute way from Mr. Godin to define 1:1 marketing, relationship marketing, targeted marketing, personalization, etc. It's not like this is anything new, but it is a good reminder.
It's also a very subtle way of saying, "let's market to our differences" instead of finding and marketing to the "common ground", similarities or sameness. Example, we are all part of the human family. We all breath oxygen to survive. We all require water. We all require food. We all need to be loved.
Yes, the bell curve above is an interesting chart, but let's get real - we're either all "weird" or we are all "human".