The hard problem of consciousness was defined by David Chalmers in 1995, challenging the assumption that physical processes alone can fully explain subjective experience. This conceptual framework argues that while neurobiology addresses the mechanics of brain function, it leaves a significant explanatory gap regarding how and why these processes result in internal feelings or qualia.
Formative Years and Academic Path
Born in 1966 in Sydney, Australia, Chalmers spent his youth in Adelaide. His early intellectual life was defined by a strong aptitude for mathematics, evidenced by a bronze medal at the International Mathematical Olympiad, and an interest in technology developed through programming on a PDP-10. At thirteen, reading Douglas Hofstadter's Gödel, Escher, Bach sparked a sustained engagement with philosophy. After earning a degree in mathematics from the University of Adelaide, he pursued further studies as a Rhodes Scholar at the University of Oxford, though he later withdrew from the program. He ultimately earned his PhD in philosophy and cognitive science from Indiana University Bloomington in 1993, working under his early inspiration, Hofstadter.
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Chalmers distinguishes between the easy problems of consciousness, such as object discrimination or verbal report, and the hard problem: the nature of felt awareness. In his 1996 book, The Conscious Mind, he proposed that consciousness is a fundamental property separate from physical systems. To illustrate the limitations of pure physicalism, he utilized the philosophical zombie thought experiment. He posits that if it is logically possible for a physical duplicate of a human to exist without conscious experience, then physical properties are insufficient to explain sentience. This leads him toward naturalistic dualism, suggesting that psychophysical laws govern the relationship between physical structures and qualitative experience.
Career and Institutional Contributions
Following postdoctoral work at Washington University in St. Louis, Chalmers held academic positions at UC Santa Cruz, the University of Arizona, and the Australian National University. Since 2014, he has served as a full-time professor at New York University, where he co-directs the Center for Mind, Brain and Consciousness. Beyond his own writing, he co-founded the PhilPapers database, providing a central resource for philosophical research. His influence is marked by numerous honors, including the Barwise Prize, the Jean Nicod Prize, and election as a corresponding fellow of the British Academy in 2024.
Fast facts
- Born: 1966, Australia
- Undergraduate Degree: Pure Mathematics, University of Adelaide
- PhD: Indiana University Bloomington, 1993
- Notable Concept: Hard problem of consciousness
- Movement: Atheism
- Major Awards: Barwise Prize (2007), Jean Nicod Prize (2015)
- Professional Roles: Academic, philosopher, university teacher
- Institutional Affiliation: New York University
Questions readers ask
What is the hard problem of consciousness?
It is the question of why and how physical processes in the brain give rise to subjective, qualitative experiences.
What are philosophical zombies?
They are theoretical beings that are physically identical to humans but lack internal, qualitative experiences, used to argue against strict physicalism.
Achievements
- Jean Nicod Prize — 2015
- Barwise Prize — 2007
- Corresponding Fellow of the British Academy — 2024
- Held posts at New York University, Australian National University and University of Arizona
- Fields: philosophy and philosophy of mind
