# Qualia
Qualia (singular: quale) are the subjective, qualitative aspects of conscious experience—the redness of red, the painfulness of pain, what it *feels like* to taste chocolate. They're the "raw feels" of experience that seem to resist physical description. [[Thomas Nagel]]'s "What Is It Like to Be a Bat?" argued that even complete physical knowledge wouldn't capture what echolocation feels like from inside.
Qualia are central to debates about [[Consciousness]]. Frank Jackson's "Mary's Room" thought experiment imagines a color scientist who knows everything physical about color but has only seen black and white—when she sees red for the first time, does she learn something new? [[David Chalmers]] argues qualia show consciousness isn't reducible to physics. [[Daniel Dennett]] controversially denies qualia exist as commonly conceived, calling them a philosophical illusion.
## Key Arguments
| Argument | Proponent |
|----------|-----------|
| **Mary's Room** | Frank Jackson |
| **What is it like...** | [[Thomas Nagel]] |
| **Qualia don't exist** | [[Daniel Dennett]] |
## References
- Jackson, F. (1982). "Epiphenomenal Qualia"
- Nagel, T. (1974). "What Is It Like to Be a Bat?"
## Related
- [[Consciousness]]
- [[Philosophy of Mind]]
- [[Thomas Nagel]]
- [[David Chalmers]]
- [[Daniel Dennett]]
- [[Dualism]]