The Titan supercomputer in the US state of Tennessee was named in November 2012 as the world’s most powerful computer. It can process quadrillions of calculations per second – 176,000 times the computing capacity of 20 years ago.But is the Titan actually that much smarter than its predecessors? This, say researchers investigating artificial intelligence, remains to be seen.Based at Monash University in Melbourne, Associate Professor David Dowe is part of an international collaboration that has developed the Anytime Universal Intelligence (anYnt) test, intended to be able to measure the progress of artificial intelligence. It is the world’s first test of this type. Central to this effort, says Associate Professor Dowe, is the question of what intelligence is – that is, what is the test trying to measure?