The Human Spark | Clip | Beyond the Present
A look at humans' unique ability to reflect upon events that have happened in the past and think about things that could possibly happen in the future.
A look at humans' unique ability to reflect upon events that have happened in the past and think about things that could possibly happen in the future.
Alan Alda visits dozens of scientists on three continents -- and even undergoes an examination of his own brain -- to find the answer to one question: What makes us human?