Let me inventory all the durable claims from the entire conversation:

**Core answer:**
- "Grow or shrink" resolves as "both" — bifurcation/thinning. Region- AND stratum-specific.
- Total enrollment drifts from ~19M toward ~14–15M by 2045 (Unverified forecast), mid-tier absorbs the loss.
- Degrees conferred roughly steady while institution count falls — "thins, doesn't shrink."
- Median campus roughly halves.

**Demography (load-bearing):**
- Births 4.32M (2007) → ~3.59M (2023), ~17% decline (CDC/NCHS).
- HS grads peak ~3.9M/yr ~2025 (WICHE "Knocking at the College Door").
- Birth dearth hits college age 2029–2037.
- Northeast/Midwest/Plains lose 10–20% college-age (WICHE); TX/FL/TN/GA/Carolinas grow.
- Net domestic migration to Sun Belt (Census Bureau).

**AI's role:**
- Accelerant/sorter, not primary cause. Two-front squeeze: fewer 18-year-olds AND weakened degree signal.
- Compute-hungry industry follows cheap land/power/taxes south; university prestige follows industry funding.

**Signaling/demand:**
- Asymmetric loss by enforcement mechanism: licensed (statute-gated: nursing, law, accounting, teaching; catastrophic-failure: engineering, medicine) and super-selectives hold; mid-tier unlicensed BA premiums compress 30–50% real by mid-2030s (Unverified).
- Fastest collapse in generalist white-collar fields (business, communications, generic liberal arts) where AI enables direct output verification.
- By 2035 median degree = positional luxury marker.
- Two brakes: AI application floods push employers back to crude degree filters; elite alumni networks.
- Degree survives as insurance (sorting, licensure, networks), not instruction. Bifurcates by tier before region.
- Demand migrates to "protected degree + AI skill stack."
- Pre-AI employer drift: HBS "Dismissed by Degrees"; Burning Glass Institute "The Emerging Degree Reset" (~46% of middle-skill postings dropped degree requirements 2021–22).
- Stanford Digital Economy Lab "Canaries in the Coal Mine" (2025) — early-career employment declines in AI-exposed occupations.
- Compression from both ends: below via skills-based hiring/verifiable portfolios; above via AI doing routine analytic work entry degrees signaled.
- Degree decomposes into entry-ticket (ROI goes negative) vs positional product by ~2035; mid-market contraction is buyer arithmetic, not demography.
- Mid-market enrollment contracts 25–40% by ~2035 (Unverified).
- Signal bifurcation: elite degrees gain value BECAUSE verification makes mid-tier signals redundant; degree reprices from entry ticket to exit credential (licensure, grad gatekeeping, late-career management) — professional/grad enrollment holds.
- "AI doesn't kill the degree; it kills the undifferentiated degree."
- Agentic hiring stacks: work-sample simulators; "bachelor's required" listings fall 30–50% in AI-exposed occupations by late 2030s (Unverified).
- Credential-value decay hits by major before by institution: skills-based hiring + verifiable AI proficiency substitutes degree-filter major-by-major — general business, communications, intro IT first. Licensure-gated majors hold because the state license, not the signal, is the true bottleneck. Net: national headcount roughly flat-to-down; disruption is compositional churn; campus fates track program mix — health-sciences/engineering-anchored hold, generic liberal-arts/teaching-heavy lose the middle regardless of region.
- AI-native competitors/corporate academies take signaling role; employer-verified skill records substitute for transcript signaling.
- Total degree-seeking enrollment falls 15–25% below demographic baseline by 2045 (Unverified).

**Program mix × region:**
- Licensed vs unlicensed share of credit hours = dominant predictor; region governs whether winning mix is reachable.
- Licensed expansion takes 7–10 years (clinical placements, faculty pipelines, state approvals) — longer than declining-region runway → decline locks in.
- SEC/Sun Belt publics +10–25% seats through ~2040 as legislatures fund as economic development.
- Northeast small privates without licensed core: −30–50% by 2040 (Unverified).
- "Program mix picks the winners, regional demography picks which losers can still switch."
- Three stacked currents: demographic cliff, migration to Sun Belt, AI disruption landing on white-collar task clusters in legacy NE/Rust Belt metros (highest sticker prices exactly