We explore how a simple coloring rule on a triangulated triangle guarantees a rainbow triangle and how that snapshot ties to Brouwer's fixed point theorem. From the 1D parity intuition to the 2D guarantee of a rainbow simplex, we see how coloring, topology, and computation intersect. Along the way we touch on fair division, Minsky's theorem, and the surprising complexity twist: finding a Sperner simplex is PPA-complete, so existence is guaranteed, but efficient search is another story.Note: This podcast was AI-generated, and sometimes AI can make mistakes. Please double-check any critical information. Sponsored by Embersilk LLC

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