The brain is a physical organ—that much is clear to everyone. But how do we understand the mind and consciousness—what is it and how did it evolve? Source: Thinkstock Do you think of yourself as ...

The science of consciousness has not lived up to expectations. Over the summer, the neuroscientist Christof Koch conceded defeat on his 25-year bet with the philosopher David Chalmers, a lost wager ...

Consciousness is the ultimate question of existence. Nothing is more essential than our experience. Yet we have no consensus, and perhaps no clue, about what it actually is. The trouble, in part, is ...