Final answer:
The Evil Demons and the Mere Possibility of Error skeptical argument challenges the existence of a deity based on the problem of evil.
Step-by-step explanation:
The Evil Demons and the Mere Possibility of Error skeptical argument challenges the existence of a deity based on the problem of evil. The argument highlights the inconsistency between the concept of an all-knowing, all-powerful, and all-good deity and the presence of moral evil in the world. Critics argue that attempts to defend the existence of a deity involve subtly altering the idea of a supreme being to one that is not fully all-perfect.