Pipe and Switch
A stem conducts relation.
It does not enclose that relation.
It does not choose among destinations.
Two neighboring forms do that work.
Pipe
A pipe is bounded conduction.
Wall, bore, pressure, direction.
What travels does so because the interior is held.
That geometry belongs to the constituted field:
→ GAMECRAFT · FLOW / FLUME / CHANNEL
→`
Switch
A switch is disposition at a junction.
It admits, refuses, or reroutes.
It changes which continuation is live.
That aperture belongs to admission:
→ SEAL
The stem may meet a pipe where relation needs containment in order to travel.
The stem may meet a switch where more than one continuation is possible.
The meeting does not transfer office.
A stem that begins to enclose has become a pipe.
A stem that begins to judge has become a switch.
Neither error is repaired by renaming the part.
ROOT → STEM → BRANCH
Pipe and switch may appear along the way.
They do not become the way.
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