The Flat Earth Theory meme category stems from the modern resurgence of the belief that the Earth is a flat plane rather than a globe. While the concept dates back centuries, it became a massive internet phenomenon in the mid-2010s through viral YouTube documentaries and social media groups. Memes in this category typically poke fun at the perceived lack of scientific logic, the 'Ice Wall' theory, or the idea of NASA faking satellite images. They are widely used as a satirical tool to mock extreme skepticism of established science or to humorously portray anyone who holds stubbornly contrarian views on obvious physical facts.