about the why, I think the ability to think quickly (in wide breadth and large quantity, even with some shallowness due to time constraint) becomes more and mor

about the why, I think the ability to think quickly (in wide breadth and large quantity, even with some shallowness due to time constraint) becomes more and more important in modern times, compared to, say, the Renaissance days, because the vast amount of information available, the increasingly complicated and complex situations we face in work place and daily life, and the fast pace of everything moving at, the subsequent demand for people to handle all these.