Design patterns are not, and never will be "important field of computer science". They're a neat-seeming idea with very little practical value because the real

Design patterns are not, and never will be "important field of computer science". They're a neat-seeming idea with very little practical value because the real world doesn't fit into a small set of neat patterns, no matter how cute you name them. Overall, they do more harm (usually of the "golden hammer" variety) than good.