Mapping Theorizing refers to general rational hypothesis in order to explain plot points in mapping. Mapping Theorizing was highly prevalent during the Second Wave Edge and early 2018, and while it is not as needed as previously, due to the plot of many mappers simplifying, it still remains as a key part of audience feedback.

It is commonly accepted that Mapping Theorizing first came to light during Episode 10 of Proxima's PIM Alternate Future of the World, on April 18, 2017. YourFriendlyNeighbourhoodGeorge was the first mapper theorist, claiming that Intisar had become the enemy of the Terran Union after previous cooperation. SkylarWeston soon took inspiration and went one step further, claiming that Intisar and Maghreb were one and the same. Soon after that, on April 29, 2017, George and Skylar joined forces on Discord to continue to theorize, giving birth to the Diarchy of Mapping, the first mapping theorist community.

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