ken285

It's tough to say there's one that's significantly more important than another because everyone is dependent on each other. Assuming CS is the answer, where would it be without the machines to create the computers? Where would those machines be housed if there was no building? How would the building be built without energy to fuel the machines? Take any one of those steps out and the world as we know it won't exist.

EDIT: Do you think people would say CS because all the other fields are taken for granted? Many people today were around before CS became big, so the importance of it may seem to be more than it actually is.