Yet ... advances in the field of artificial intelligence occur at such a breakout pace they are redefining the relationship between man and machine. Computer scientist David Gelernter says the coming of computers with true humanlike reasoning remains decades in the future, but when the moment of "artificial general intelligence" arrives, the pause will be brief. Once artificial minds achieve the equivalence of the average human IQ of 100, the next step will be machines with an IQ of 500, and then 5,000. "We don't have the vaguest idea what an IQ of 5,000 would mean," Gelernter wrote in The Wall Street Journal.