Scoped Propagators
summary
A lightweight embedding called Scoped Propagators treats computation as functions on edges rather than nodes, implementing single-input single-output propagators wired between existing UI rectangles. Events are scoped — e.g. onchange, click, tick — to trigger partial state updates (text, w, h), with examples including a slider→text, toggle-driven follow behavior (fish vs shark), a joystick mapping, and an async side-effect syntax for waits like sending an email. Current limits: no bidirectionality, no hyperedge UX yet; target uses: webpage annotation layer or graph database glue.
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