The user wants a consolidated revision of all the notes in this Mind. This is a synthesis task. I need to produce one Markdown note that represents the current best statement of what is established about whether US universities grow or shrink due to AI over the next 20 years, with regional dependence.

Let me compile the durable claims from the notes:

**Core answer:**
- "Both" — the system bifurcates and thins; region- and stratum-specific. Doesn't shrink uniformly, doesn't grow uniformly.
- Total enrollment drifts ~19M → ~14-15M by 2045 (Unverified)
- Degrees conferred roughly steady while institution count falls — "thins, doesn't shrink"
- Median campus roughly halves (aggressive; mid-tier claim)
- AI is an accelerant/sorter of existing trends
- Two-front squeeze: fewer 18-year-olds AND weakened degree signal
- Barbell: system shrinks at the median while top decile grows; total flat-to-down 10-20% outside flagships
- Cost-efficiency claim: total roughly flat while geography rotates south — hmm, this is in tension with the enrollment decline. Note 12 reconciled it: AI cost efficiency doesn't shrink the sector (that's demography/credential value's job); it reallocates capacity.

**Demography (sourced):**
- 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
- NE/Midwest/Plains lose 10-20% college-age cohorts (WICHE); TX/FL/TN/GA/Carolinas grow
- WICHE ~13% decline in HS grads by 2041
- Net domestic migration to Sun Belt (Census Bureau)

**Credential value / signaling:**
- Screening vs insurance decomposition: screening dies first; insurance (blame-shifting/liability) is sticky residue through 2040s
- Post-2035 degree demand tracks sector's legal/liability regime before it tracks region
- Licensed/statute-gated fields hold (nursing, law, accounting, teaching, engineering, medicine); super-selectives hold
- Mid-tier unlicensed BA premiums compress 30-50% real by mid-2030s (Unverified)
- Fastest collapse in generalist white-collar fields
- By ~2035 median degree = positional luxury marker; reprices from entry ticket to exit credential
- "AI doesn't kill the degree; it kills the undifferentiated degree"
- Decay hits by major before by institution
- Pre-AI drift: Burning Glass (~46% of middle-skill postings dropped degree requirements 2021-22); HBS "Dismissed by Degrees"
- Stanford "Canaries in the Coal Mine" (2025)
- Total degree-seeking enrollment falls 15-25% below demographic baseline by 2045 (Unverified)
- Mid-market enrollment contracts 25-40% by ~2035 (Unverified)
- Micro-credentials are a middle-market illusion — complement at top, fail to stabilize bottom
- Two brakes: AI application floods push employers back to crude degree filters; elite alumni networks
- Elite degrees gain value BECAUSE verification makes mid-tier signals redundant
- Degree survives as insurance (sorting, licensure, networks), not instruction
- Demand migrates to "protected degree + AI skill stack"
- "Bachelor's required" listings fall 30-50% in AI-exposed occupations by late 2030s (Unverified)
- Statutory gatekeeping: residual degree value set by statute, not brand signal
- Binding constraint flips from demand to physical attestation capacity (labs, clinicals, proctored assessment)
- Tiered online-plus-residency models (Georgia Tech OMSCS, ASU) absorb demand and grow
- Licensure premium vs signaling premium: signaling dies, licensure survives
- Hiring decomposes by sector: degree requirements vanish first in at-will, project-based sectors
- AI-skills training is not a university moat — flows to employer upskilling, short-cycle providers
- Entry-level displacement attacks the rung the degree is priced against; willingness-to-pay collapses first at mid/low-selectivity tier
- AI deflates credential price-justification per student faster than it deflates headcount; symptoms arrive first as tuition discounting (privates) and program closures (regionals), years before sector-wide statistics move

**Program mix × region:**
- Licensed vs unlicensed share of credit hours = dominant predictor
- Licensed expansion takes 7-10 years — longer than declining-region runway
- SEC/Sun Belt publics +10-25% seats through ~2040 as legislatures fund as economic development