A slide doesn’t have to be a page. It can be a scene — a small contained world where objects exist, interact, and carry meaning visually. Some ideas land better as an interactive metaphor than a bullet: a tiny flight worldlet teaches “stay in the right space, measure, fix, empty the hold” by being flown, not diagrammed.
The discipline that keeps it honest: author visually, export cleanly. The editor can be sophisticated; the output must be plain, portable markup that belongs to the creator and runs without the tool. The static truths in this garden are the same move — an idea you can touch instead of a claim you have to take.
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Evidence · a slide you fly

A slide as a small contained world — the pilot's flight remote. Author visually, export cleanly; the scene is played, not read.
How it has been tended
Planted from Deckster — author visually, export cleanly.
drift: Belongs near systems-that-learn; links still thin.