Explanatory Gap

The explanatory gap is the perceived inability of physical or functional theories to account for the phenomenal character of conscious experience. The term was coined by Joseph Levine in 1983, but the problem is as old as the mind-body problem itself. Even a complete neuroscientific description of a brain state — every neuron, every synapse, every oscillation — leaves unanswered the question of why that state feels like something, or what it feels like. The gap is not merely a lack of knowledge; it is a structural mismatch between the kinds of facts physical science delivers and the kind of fact phenomenal consciousness appears to be. Some philosophers argue that the gap will close with future science; others argue that it marks a genuine limit on the explanatory power of physicalism. The systems-theoretic response is that the gap is not between mind and matter but between the third-person and first-person perspectives — and perspectives are not reducible to their contents.\n\n