In the 2006 version of your book you described three types of specialized thinking. Now there's a huge skill loss problem we've got and I realized what a big skill loss we had until I went to four places in 2019 right for COVID hit. Twenty years ago we made two mistakes in education. We took out all the hands on classes in some schools art sewing woodworking, carpentry, auto mechanics, drafting,. All those hands on things. So kids are growing up not using tools. The other big mistake that was made in industry is shutting down in the house engineering departments back in the 80s and the early 90s. These companies had big shops where they could invent and patent equipment