I don't think computers can think, thinking is only a human perception and most of it is useless. Being creative to direct an orchestra that other humans may like is pointless to survival. Too think I think you need to have a purpose, If I were to give humans a naive purpose I would say to find the meaning of life through survival and attaining great knowledge. I believe a machine will be able to do this better eventually if not soon. All it needs is problem solving and to start with a set of resources that its allowed to use.