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42 theories

Idealism: theories of consciousness

Consciousness is the fundamental reality. Mind or awareness comes first, and the physical world, including brains, is derived from consciousness, exists within it, or is an illusion.

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Idealism turns materialism upside down. Materialists must explain how consciousness arises from matter. Idealists hold that matter arises from consciousness, or is a form consciousness takes, so the hard problem does not come up in its usual form. Each individual mind, human or animal, is a part or expression of a wider consciousness. The view anchors several religious traditions, especially those that began in India.

Its history runs on two tracks. The Upanishads identify Brahman, ultimate reality, with Atman, the self, and Śaṅkara’s Advaita Vedānta, Kashmir Shaivism and Buddhist Yogācāra developed mind-only views in detail. In the West, George Berkeley argued that to be is to be perceived, with God as the perceiver who keeps the world in existence when no one is looking. Kant, Fichte, Schelling and Hegel built German idealism, and F. H. Bradley’s absolute idealism carried it into Britain.

Idealism is gaining adherents today. Bernardo Kastrup’s analytic idealism treats individual minds as dissociated parts of one universal consciousness. Donald Hoffman argues that perception evolved to hide reality from us, and that the world is made of interacting conscious agents. David Chalmers distinguishes micro-idealism, grounded in the mentality of particles, macro-idealism, grounded in minds like ours, and cosmic idealism, grounded in a single cosmic mind.

Its central problem mirrors panpsychism’s. Panpsychists struggle to combine small minds into one. Idealists struggle to split one cosmic mind into many separate minds, and to explain why a world made of mind behaves with such lawful, shared regularity. Berkeley answered with God, Kastrup with dissociation, a mechanism borrowed from psychiatry.

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