The Bourdain recently did a show about learning how to make the simplest stuff-- roast chicken, omelet, spaghetti with tomato sauce-- and asked renowned chefs like Thomas Keller to give lessons.
The "simplest" things are actually the most difficult to do well. Like making hardboiled eggs. Usually people will say that someone is so bad at cooking that all he can do is boil an egg. But doing it properly-- i.e., the yolk and white are hardboiled, but there is no trace of grey on the outside of the yolk-- requires tremendous precision.
Truly PhD level stuff. In which case I'm stuck repeating 5th grade.