{"id": "card_chart_tesseract", "kind": "reference", "title": "The tesseract — the 4-cube and its shadow", "body": "A chart on the one map: the tick stick stick_the_tesseract_the_4_cube_and_its_shadow, placed on the capstone. The 4-cube has 16 vertices, 32 edges, 24 faces, 8 cubic cells, and its 4D Euler sum V-E+F-C = 0 (all sealed). We see it only as a 3D shadow - the project's image of seeing projections of a higher reality, 'through a glass, darkly'; many 3D shadows, one 4D object. The stick keeps its seals (read live at /stick?id=stick_the_tesseract_the_4_cube_and_its_shadow); this card is a cited pointer. Found, never generated.", "source": {"label": "Narrow Highway - a chart: a tick stick placed on the one map", "url": "", "ref": "stick_the_tesseract_the_4_cube_and_its_shadow", "authority_tier": "engine_derived"}, "shelf": "codex", "box": "chart", "bands": ["chart", "stick", "tesseract", "hypercube", "shadow", "one map"], "subject": "The tesseract - the 4-cube and its shadow", "connections": [{"to_card_id": "card_floor_the_capstone", "relationship": "charts", "evidence": "the 4-cube and its 3D shadow - many projections of one higher object, the capstone's many-and-one"}, {"to_card_id": "card_floor_relativity", "relationship": "connects_at", "evidence": "the 4th dimension made rigorous - distinct from spacetime's time axis, the same lesson of dimensions beyond three"}, {"to_card_id": "card_k_floor_of_discovery", "relationship": "part_of", "evidence": "a chart on the one map, rooted in the Floor of Discovery"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.chart", "facets": {"subject": ["hypercube", "one map", "shadow", "stick", "tesseract"]}, "presentation": {"glyph": "•", "kind_label": "chart", "by": "Narrow Highway - a chart: a tick stick placed on the one map", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_floor_the_capstone", "title": "The capstone — one source, many potentials, one end", "relationship": "charts", "why": "the 4-cube and its 3D shadow - many projections of one higher object, the capstone's many-and-one", "href": "/card/card_floor_the_capstone", "resolved": true}, {"id": "card_floor_relativity", "title": "Relativity — many frames, one invariant", "relationship": "connects at", "why": "the 4th dimension made rigorous - distinct from spacetime's time axis, the same lesson of dimensions beyond three", "href": "/card/card_floor_relativity", "resolved": true}, {"id": "card_k_floor_of_discovery", "title": "The Floor of Discovery — one floor, and by its design the fear of God", "relationship": "part of", "why": "a chart on the one map, rooted in the Floor of Discovery", "href": "/card/card_k_floor_of_discovery", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_chart_tesseract", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_chart_tesseract"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}