Thank you for your contribution. I think we can agree, that when you want a hamburger from me, my ability to deliver that hamburger is the yardstick you will use. You will use a different yardstick, if you will ask me to surprise you with a hamburger that is still a hamburger, but different that you can get in most other places. One needs to know a lot about typical hamburgers before being capable to satisfy your more challenging request. School should teach ask these simple things, so we will be well prepared to deal with challenges that school could not even think of.