Branching after periods

In progress (#todo)

This page is a placeholder for the branching generalization of nests: what it means for a period-to-period composition to branch into a scenario tree (and how that interacts with perches, connectors/twisters, and the meaning/representation maps).

Implementation spec: See Spec 0.1l — Branching stages for the concrete syntax, representation shapes, and builder algorithm.

Scope (placeholder)

• Period-indexing vs. stage-occurrence indexing in branched nests
• Nonanticipativity / information structure constraints after branching
• Minimal SYM/T core contract for "branching after periods"

Christopher Carroll and Akshay Shanker — repository in development, please do not cite.