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This, and Ask A Foolish Question by Robert Sheckley [1] are my all-time favourite Sci-Fi works [1] https://www.gutenberg.org/ebooks/33854 https://www.gutenberg

• 082349872349872 4y ago
  Re: Ask A Foolish Question, an application of antimatroids as a model of "knowledge spaces" (eg. the tech tree in a strategy game) suggests that concepts/skills which have multiple prerequisites are likely to be easier to acquire/teach than concepts/skills which have a unique prereq. In the former case, one "just" has to combine things one already knows how to do, "all at the same time". In the latter case, one has to figure out some kind of jump that allows doing the old thing in a new way.