Question

In the context of radical skepticism, what does the skeptic doubt regarding our knowledge?

a. The existence of the external world.

b. The possibility of radical skepticism.

c. The reliability of sensory perception.

d. The certainty of mathematical truths.

Answer 1

Option C is answer. Radical skepticism doubts the reliability of sensory perception and the existence of the external world, questioning our ability to truly know anything given hypothetical scenarios like the brain-in-a-vat.

Step-by-step explanation:

In the context of radical skepticism, the skeptic doubts the reliability of sensory perception and ultimately the existence of the external world. Skeptical arguments typically involve scenarios that suggest we cannot be certain about our beliefs, such as the possibility that we are a brain in a vat, or being deceived by an evil demon. Skeptics argue that this lack of certainty prevents us from truly knowing anything.

However, one response to radical skepticism is to reject the need for absolute certainty in order to have knowledge or justified beliefs about the world. This stance is crucially tied to various epistemological inquiries about the nature of justification and knowledge, challenging the skeptic's strict measures.