Abstract
For many, putting in doubt the existence of phenomenal consciousness is absurd
since the distinction between appearance and reality does not apply to it. Many cognitive
scientists and neuroscientists accept the existence of consciousness in virtue of such
reasoning. The present work questions that justification. Consciousness is a concept
whose scientific meaning comes from philosophy or colloquial language. From this,
it concludes that the “self-evident nature of consciousness” is not a scientifically valid
statement. This philosophical assumption rests on a category mistake in scientific
language use.