Can any of us fix anything? No. None of us can do that. We’re specialized. Each of us has his own line, his own work. I understand my work, you understand yours. The tendency in evolution is toward greater and greater specialization. Man’s society is an ecology that forces adaptation to it. Continual complexity makes it impossible for any of us to know anything outside our own personal field – I can’t follow the work of the man sitting at the next desk over from me. Too much knowledge has piled up in each field. And there are too many fields.