I try to avoid predictions in software further ahead than 30 years. I expect search will be rather unrecognizable by then. Just think back 50 years (PDP-10 an

I try to avoid predictions in software further ahead than 30 years. I expect search will be rather unrecognizable by then. Just think back 50 years (PDP-10 and ITS 40 years ago; Apple and Unix at 30; Linux is 15).