What Is It Like to Be a Bat?

Thomas Nagel argues that while a human might be able to imagine what it is like to be a bat by taking "the bat's point of view", it would still be impossible "to know what it is like for a bat to be a bat." (Townsend's big-eared bat pictured).

"What Is It Like to Be a Bat?" is a paper by American philosopher Thomas Nagel, first published in The Philosophical Review in October 1974, and later in Nagel's Mortal Questions (1979). The paper presents several difficulties posed by consciousness, including the possible insolubility of the mind–body problem owing to "facts beyond the reach of human concepts", the limits of objectivity and reductionism, the "phenomenological features" of subjective experience, the limits of human imagination, and what it means to be a particular, conscious thing.[1]

Nagel famously asserts that "an organism has conscious mental states if and only if there is something that it is like to be that organism—something it is like for the organism."[2] This assertion has achieved special status in consciousness studies as "the standard 'what it's like' locution."[3] Daniel Dennett, while sharply disagreeing on some points, acknowledged Nagel's paper as "the most widely cited and influential thought experiment about consciousness."[4]: 441 Nagel argues you cannot compare human consciousness to that of a bat.

  1. ^ Nagel, Thomas (10 March 2005). Honderich, Ted (ed.). The Oxford Companion to Philosophy. Oxford: Oxford University Press. p. 637. ISBN 978-0-19-103747-4.
  2. ^ Nagel, Thomas (1974). "What Is It Like to Be a Bat?". The Philosophical Review. 83 (4): 435–450. doi:10.2307/2183914. JSTOR 2183914.
  3. ^ Levine, Joseph (2010). Review of Uriah Kriegel, Subjective Consciousness: A Self-Representational Theory. Notre Dame Philosophical Reviews 2010 (3).
  4. ^ Dennett, Daniel C. (1991). Consciousness Explained. Boston: Little, Brown and Company.