What is the hard problem of consciousness according to David Chalmers?
David Chalmers defines the hard problem of consciousness as the question of why subjective experience accompanies physical brain processes at all. He distinguishes it from the easy problems, such as explaining object discrimination or verbal reports, which are tractable through physicalist explanations. The hard problem asks why awareness feels like anything, and Chalmers argues this cannot be resolved by mapping mechanisms alone.
What is a philosophical zombie in David Chalmers's philosophy?
A philosophical zombie, as used by David Chalmers, is a hypothetical being physically identical to a human in every respect but lacking any subjective experience. Chalmers argues that since such zombies are conceivable, they are logically possible, which means consciousness cannot be fully explained by physical properties alone. He traces the philosophical zombie concept back at least to Robert Kirk's 1974 paper Zombies vs. Materialists.
Where did David Chalmers get his PhD and who was his supervisor?
David Chalmers received his PhD in philosophy and cognitive science from Indiana University Bloomington in 1993. His doctoral supervisor was Douglas Hofstadter, the same author whose 1979 book Godel, Escher, Bach had sparked Chalmers's interest in philosophy when he read it at age 13. His thesis was titled Toward a Theory of Consciousness.
What is two-dimensional semantics and how did David Chalmers contribute to it?
Two-dimensional semantics is a theory of meaning that distinguishes between two types of intension for any word or statement. David Chalmers, along with collaborators including Frank Jackson, played a major role in developing this framework as a response to Saul Kripke's direct reference theory. The primary intension captures how we identify a referent, while the secondary intension captures what the word actually refers to in the actual world.
What did David Chalmers argue in his 2022 book Reality Plus?
In Reality+, published in 2022, David Chalmers argues that virtual reality is not an illusion but a genuine reality in its own right. He suggests virtual worlds could offer as meaningful a life as non-virtual reality, and that humans could already be living in a simulation without knowing it. He also proposes that computers are forming an exo-cortex, a form of extended cognition outsourced to corporations.
What bet did David Chalmers win in 2023 with Christof Koch?
In 1998, David Chalmers bet neuroscientist Christof Koch a case of wine that the neural underpinnings of consciousness would not be resolved by the year 2023. Koch bet that they would. Chalmers won the bet in 2023, reflecting the continued difficulty of solving the hard problem he had helped define decades earlier.