This second episode of season 2 begins this fantasy story with its cast of inner characters: Bickham, Old Billy (the dog), Paleg (the mountain lion), Burr (the narrator and host’s avatar) and GreaPaw (pronounced ‘gray-paw’) who brought the story into existence. The crew tells us about Bickham’s surprising dream-travel to Deepland, a parallel universe with inhabitants called Poppers. Here the story begins of the five concepts of physicality and mathematics that are known by Poppers but missing in the stories of People. This episode ends with a simple demonstration that hints of almost every one of those five concepts. Old Billy calls it the string-thing which, by the way, bears no relation to string theory in physics.
Deepland is a sequel (with a twist) to the Flatland -> Sphereland sequel of Edwin Abbott (Flatland, 1884) and Dionys Burger (Sphereland, 1965). Old Billy especially enjoys the twist, which is revealed in this episode.
For PDF downloads of Season 2 episodes see:
https://www.toy-physics.net/deepland/episode-02
