The human bruin contains 10 thousand million cells and each of these may have a thousand connections. Such (36) numbers used to discourage us and cause us to (37) the possibility of making a machine with humanlike ability, hut now that we here grown used to moving forward at such a (38) we can he leas sure, Quite soon, in only to or 20 years perhaps, we will he able to (39) a machine as complex as the human brain. It may then take us a long time to (40) it intelligent by leading in the right software or by (41) the architecture but that too will happen. I think it certain that in (42) , not centuries, machines of silicon (硅) will arise first to (43) and then exceed their human ancestors. (44) . Silicon will have ended carbon’s long control. And we will no longer be able to claim ourselves to he the finest intelligence in the known universe. As the intelligence of robots increases to match that of humans and as their cost declines, (45) , first on earth through their ability to withstand environments. Further, by a combination of the great wealth this new age will bring and the technology it will provide, (46)