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Problem 14 · Early Universe

INHERITED

Lithium problem

What's wrong (standard view): BBN predicts 3x too much Li-7.

ISST status

Current status: INHERITED

ISST does not modify BBN. Psi is frozen during radiation era (T_trace=0, no source). G changes by 6 ppm from BBN to today. (1+f) irrelevant (radiation dominates 10^4:1). Standard BBN predictions inherited unchanged. Lithium problem is the same as LCDM — widely suspected to be astrophysical (stellar depletion), not cosmological.

Source

Where this is documented

isst_lithium.py

This is an auto-summary of the canon entry. The full derivation lives in the referenced section of the lab's manuscript and working notes; a hand-enriched page may be added here in a later pass.

What would prove this wrong

Kill conditions

Per-problem kill conditions are recorded with each derivation in the ISST manuscript. The site-wide kill conditions (right-hand sidebar) cover the framework-level commitments that, if violated, would invalidate all DISSOLVED and PARTIAL claims simultaneously.