Speaking to an audience of 4,000 at the World Government Summit in Dubai, the entrepreneur, who is CEO of Tesla and SpaceX, and wants to send men to Mars, discussed the age-old question of whether intelligent aliens exist. The South African-born space and business magnate, who also co-founded PayPal, was being interviewed by Mohammad Abdulla Alergawi, the Minister of Cabinet Affairs and the Future for the UAE, when he said some people had previously claimed he was an alien himself. Maybe they are among us I don't know. Some people think I am an alien. Not true. Elon Musk He said: "This is one of the great questions in physics and philosophy — where are the aliens? "Maybe they are among us I don't know. Some people think I am an alien. Not true. "Of course I would say that though wouldn't I?" He added: "If there are super intelligent aliens out there they are probably already observing us. "We are just not smart enough to realise it. "Any advanced alien civilisation that was at all