> You know it was once a conspiracy theory to say the Earth wasn't flat. In the 3rd century BCE, it is documented that the Egyptians calculated the circumferen

> You know it was once a conspiracy theory to say the Earth wasn't flat. In the 3rd century BCE, it is documented that the Egyptians calculated the circumference of the Earth to a relatively high degree of accuracy [1]. The Earth not being flat wasn't so much a "conspiracy theory" but a challenge to medieval Christian doctrine. It just doesn't fit the modern definition of a "conspiracy theory". The essential part of a conspiracy theory is that a powerful and covert group is responsible for something not appearing as it seems. Common examples: faked Moon landings, UFOs (as aliens, including Roswell and other such incidents), the JFK assassination (done by the CIA or whoever) or the Holocaust didn't happen. They all tend to revolve around some Big Lie (a fact exploited by Goebbels and others) and it tends to play into human psychology that there's some grand plan or there's something you, as a believer, know that other people don't. We now live in a time that has validated people raising how they feel to having the same weight as science, demonstrable evidence and reason. So now we have people believing in stolen elections, QAnon, Covid-19 being fake and the like. So what you're doing is attempting to conflate the term conspiracy theory by applying it to a situation any reasonable person knows as being obvious ("the Earth isn't flat") and I have to wonder why. What other belief are you trying to validate? [1]: http://www.geo.hunter.cuny.edu/~jochen/gtech201/lectures/lec6concepts/Datums/Determining%20the%20earths%20size.htm#:~:text=In%20the%20third%20century%20BCE,locations%20on%20the%20earth's%20surface http://www.geo.hunter.cuny.edu/~jochen/gtech201/lectures/lec....