Why does the feeling of being alive exist, and can science explain it?

Ideas & Philosophy · Published 3 October 2026 Swipe more like this →

In short: David Chalmers is the philosopher who famously defined the hard problem of consciousness. He argues that while we can map the brain's physical functions, explaining why those processes feel like anything at all remains an elusive, fundamental mystery that standard physicalist science may never fully solve on its own.

Born in 1966, the Australian philosopher David Chalmers rose to prominence in the 1990s by distinguishing between the easy and hard problems of consciousness. Easy problems involve explaining cognitive tasks like object discrimination or verbal reporting, which are theoretically solvable through physicalism. The hard problem, however, asks why subjective experience—the 'feeling' of awareness—exists at all. Chalmers argues that because we can conceive of 'philosophical zombies'—physical duplicates of humans that lack internal experience—consciousness cannot be reduced to mere physical properties.

Chalmers advocates for 'naturalistic dualism,' suggesting that mental states are ontologically distinct from physical systems but naturally supervene upon them. He proposes that there may be psychophysical laws governing this relationship, and has even entertained the possibility of panprotopsychism, where consciousness is a fundamental property of all information-bearing systems. His work has sparked intense debate, drawing critiques from thinkers like Daniel Dennett and John Searle, who challenge his dualist stance and his use of thought experiments like 'fading qualia' to argue that functionally identical systems must share the same conscious experiences.

Beyond consciousness, Chalmers has made significant contributions to the philosophy of language and the nature of reality. He developed two-dimensional semantics to address how words secure their referents, challenging the direct reference theory championed by Saul Kripke. In his 2022 book Reality+, he argues that virtual worlds are not mere illusions but genuine realities, and he has explored the 'extended mind' hypothesis, suggesting that human cognition is increasingly outsourced to external devices. Whether analyzing the potential consciousness of large language models or the nature of virtual existence, Chalmers remains a central figure in contemporary analytic philosophy, maintaining a moderate pessimism regarding the overall progress of the field.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• Why does the physical brain produce the subjective feeling of being alive?
• Can science ever explain the raw, subjective feeling of being alive?
• Could you be a zombie without knowing it, or are you truly conscious?
• The radical claim that consciousness is the fundamental stuff of reality
• Is consciousness a fundamental building block of the universe?
• Are other worlds as real as our own? David Lewis argued they certainly are.
• Dasein: Why Martin Heidegger believed human existence is a constant, urgent philosophical question
• Can the physical world be explained without relying on abstract, non-physical objects?
• Daniel Bensaïd: The French Marxist who challenged the boundaries of revolutionary strategy
• A prominent theologian turned 9/11 conspiracy theorist, David Ray Griffin challenged modern academic materialism.
• How Dana Scott bridged the gap between abstract logic and modern computer code
• Did the Gospels record history, or did they craft a powerful, legendary myth?

More in Philosophers · More in Ideas & Philosophy · Latest · A–Z · All topics