The conversation explores various interesting topics related to the pyramids and ancient civilizations. Some of the key points discussed include the eight-sided pyramid of Giza, the smooth limestone covering of the pyramids, and the possibility of extraterrestrial involvement. The conversation also touches on the Antikythera Mechanism, an ancient analog computer, and the idea of ancient astronauts visiting Earth. The Anunnaki, a civilization from another planet, is mentioned as a possible explanation for advanced ancient technologies. The conversation concludes with a discussion on the potential disappearance of advanced civilizations and the lasting impact of human structures. In this conversation, Steve and Greg discuss various topics related to ancient civilizations and lost knowledge. They touch on subjects such as the Anunnaki, ancient astronauts, the Piri Reis map, and the Baghdad batteries. They also explore the idea of lost technologies and the potential existence of advanced ancient civilizations. The conversation highlights the importance of questioning our understanding of history and considering alternative perspectives.