Yes, the class P is huge. Calling problems in P "easy" is severely misguided. We have only barely scratched the surface of this class (linear and quadratic pr

Yes, the class P is huge. Calling problems in P "easy" is severely misguided. We have only barely scratched the surface of this class (linear and quadratic problems), but there is an infinitely deep ocean of problems below the surface that we cannot even imagine. It is illuminating to recall Knuth's view that probably P=NP, but it won't have any practical effect.