The world is being taken over by Lucifer. The question is what to do about it. Learn Torah was the basic advice of the Gra except that I would like to expand his definition of learning Torah to include Physics. {This is based on a few authorities but not all. Clearly Ibn Pakuda חובות הלבבות is on one side. Ramban (Nahmanides), Rashba on the other. Still I have good reason to think Ibn Pakuda was right.]