$ Meta

The runtime type is substrate. Meta is the public alias. $ names the support layer — storage, time, money, attention — not a generic “about this page” badge.

Use this leaf when you need the site to point back at its own medium instead of only at its content.

^"meta_contract"{

Contract

Interaction

Inspect the medium, trace, or register itself. Meta should reveal how a surface is behaving, not merely add commentary.

Metaphysics

Meta is metacognition: attention notices the instrument it is using to notice.

Brace Physics

A meta brace folds the boundary back onto itself. Its charge should become inspectability rather than hidden mystique.

Symmetry

Prefix $x primes reflection on the next unit. Postfix x$ marks that the unit leaves a reflective trace.

?["meta_example"]

Example

$register
$interaction_trace
$surface_conditions

~"operator_ring"