An effort to create the first computer simulation of the entire human brain, right down to the molecular level, was launched on Monday. The “Blue Brain” project, a collaboration between IBM and a Swiss university team, will involve building a custom-made supercomputer based on IBM’s Blue Gene design. The hope is that the virtual brain will help shed light on some aspects of human cognition, such as perception, memory and perhaps even consciousness. It will be the first time humans will be able to observe the electrical code our brains use to represent the world, and to do so in...