From Consciousness to Synthetic Consciousness: Prof. David Chalmers

What is consciousness? In this podcast David Chalmers starts addressing this question by saying that “being conscious is when there is something it is like to be that being”. This argument was initially presented by an American philosopher Thomas Nagel in an influential paper “what is it like to be a bat”. This paper was first published in the Philosophical Review in 1974. David Chalmers is an Australian philosopher and a cognitive scientist specializing in the area of philosophy of mind. He is professor of philosophy and a director of the Centre for Consciousness at the Australian National University. He is also professor of philosophy at New York University. In 2013, he was elected a Fellow of the American Academy of Arts & Sciences. In this podcast Chalmers discusses the nature of human consciousness, its place in nature, artificial intelligence, and the concept of singularity. In his paper “Consciousness and its Place in Nature” Chalmers describes some aspects of consciousness as easy problems and then discusses the hard problem of consciousness. In this podcast Chalmers explains in detail this approach of describing the challenge of understanding consciousness. Chalmers discusses the easy problems of consciousness and the hard problem of consciousness. An intriguing question is would we ever be able to solve the hard problem of consciousness? Some consider it an unsolvable problem and they give two main reasons for this: (1) inability of our brain to process the complicated information that would lead to an understanding of consciousness, and (2) as we all are conscious and do not have the ability to observe consciousness from outside, we cannot solve this problem. Chalmers shares his views on these points. Chalmers also discusses the relevance, and irrelevance, of artificial intelligence to the phenomenon of consciousness. If we assume that consciousness is an emergent phenomenon – a property of system is said to be emergent if it is in some sense more than the “sum” of the properties of the system’s parts – then as the processing power of computers is increasing, can it be said that one day consciousness may emerge in machines. One fundamental question is “what happens when machines become more intelligent than humans”. Chalmers says, “One view is that this event will be followed by an explosion to ever-greater levels of intelligences as each generation of machines creates more intelligent machines in turn. This intelligence explosion is now often known as the “singularity””. In this podcast we discuss these questions in detail. But is consciousness necessary; can a universe exist without consciousness? If we manage to make a machine, that can store and process information the way we store and process information, and if this machine can replicate our emotional behaviour as well, but it is not conscious, then a collection of such machines can live and function in a universe that does not have consciousness. Is it necessary to have consciousness in such a simulated world? A number of fascinating questions that arise at this point are: Will such machines live in a world that does not need consciousness? A world that can exist and function without consciousness. Will the machines of future be just super intelligent or will such machines have machines-consciousness? Is it possible that the consciousness that we experience is not real and it is just an illusion and is it possible that we are living in a simulation? Is it possible that in a universe where “they” have achieved singularity, perhaps “we” are artificially intelligent machines, living in a simulation, in a matrix?