<p>You think building a reservoir simulator is easy? that was part of our core curriculum. Trust me, PE is more difficult then it first appears. Modeling fluid flow in heterogeneous dual porosity multi drive multiphase systems 1000s of feet underground is not easy. It definitely requires a different type of engineer than your book smart MIT grad since so much of it is people oriented though. There is a big difference between solving a complex problem and actually implementing the proposed solution.</p>