What is the essential difference between “skeptics” and “deniers”?

The essential difference between "skeptics" and "deniers" lies in their approach to evidence and willingness to change their views.

1. Skeptics: Skepticism is a healthy part of scientific inquiry and is essential for the progression of any field. Skeptics question and doubt claims and theories, and their skepticism is based on the lack of evidence. However, they are open to change their views if sufficient evidence is provided. They engage in a process of questioning and investigation, and their skepticism is provisional.

2. Deniers: Deniers, on the other hand, refuse to accept any evidence that contradicts their preconceived views, regardless of the amount or quality of that evidence. Their denial is not based on an objective assessment of evidence, but on a refusal to accept the possibility that they could be wrong. Their denial is absolute and not open to change, even in the face of overwhelming evidence.

In summary, while skeptics question and doubt in search of truth, deniers dismiss and ignore evidence to maintain their existing beliefs.