Chalmer states that the hard problem of consciousness is the problem of explaining the relationship between physical phenomena, such as brain processes, and experience. (Robert J. Howell and Torin Alter (2009), Scholarpedia, 4(6):4948)
Thomas Nagel sees the problem as turning on the “subjectivity” of conscious mental states (1974, 1986). He argues that the facts about conscious states are inherently subjective—they can only be fully grasped from limited types of viewpoints. (Nagel.1974)
In addition Nagel believes that consciousness is and can only be understood subjectively. He explains how these experiences are not captured by reductive explanations. He believes that consciousness is not an explanatory system, nor a suctional state,
Thomas Nagel sees the problem as turning on the “subjectivity” of conscious mental states (1974, 1986). He argues that the facts about conscious states are inherently subjective—they can only be fully grasped from limited types of viewpoints. (Nagel.1974)
In addition Nagel believes that consciousness is and can only be understood subjectively. He explains how these experiences are not captured by reductive explanations. He believes that consciousness is not an explanatory system, nor a suctional state,