Machines will achieve human-level artificial intelligence by 2029, a leading US inventor has predicted. Machines and humans are eventually expected to merge through devices implanted in the body to boost intelligence and health. Both the hardware and the software will be created with the broad suppleness of human intelligence including our emotional intelligence by 2029. "We'll have intelligent nanobots go into our brains through the capillaries and interact directly with our biological neurons," predicted Mr. Kurzweil.to the BBC News. Mr. Kurzweil is one of 18 influential thinkers chosen to identify the great technological challenges facing humanity in the 21st century.