Explanatory gap

The term "explanatory gap" was introduced by philosopher Joseph Levine to describe the difficulty faced by physicalist philosophies in explaining how physical properties lead to subjective experiences. Levine illustrated this gap with the example of the sentence "Pain is the firing of C fibers," highlighting that while it may be scientifically accurate, it fails to explain the subjective sensation of pain. This gap has sparked significant debate and interest among philosophers and AI researchers, as it challenges the ability to fully understand consciousness through physical explanations alone.