Final answer:
Dennett's objection is primarily centered on the ignorance of cognitive processes in Cartesian dualism. He emphasizes the importance of empirical evidence for understanding perception and consciousness, and promotes epistemic humility over absolute certainty.
Step-by-step explanation:
Dennett's Objection to Descartes' Change Blindness
The concept of change blindness relates to the limits of human perception, particularly the failure to notice changes in a visual scene. Daniel Dennett, a contemporary philosopher, has raised objections to Cartesian ideas which can be connected to issues like change blindness. Dennett suggests that Descartes' dualism does not sufficiently account for the cognitive processes that underlie perception. One of Dennett's objections would be ignorance of cognitive processes. This is rooted in an understanding that cognition and, more specifically, perception is a process of the brain, rather than just the mind, as dualism posits. Dennett emphasizes the need for empirical evidence to understand perception, and he critiques the dualist perspective for its lack of empirical support and for being incompatible with what neuroscience reveals about brain activity.
Furthermore, Dennett views the need for empirical evidence as key to understanding consciousness and perception, challenging the epistemological skepticism like the 'brain in a vat' scenario presented by Descartes. Empirical evidence is essential because it allows us to bridge the gap between experience and the world, thus providing a more stable foundation for knowledge than the certainty required by Descartes. Finally, Dennett's view aligns with epistemic humility, recognizing that our ability to know reality has its limits and that rather than seeking absolute certainty, we should focus on what can be supported by evidence and reason.