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Age	Commit message (Collapse)	Author
2026-07-09	cascade root cause found: tied readout + default N(0,1) embedding init = ↵	Yuren Hao
	pathological top-CE stiffness once predictions sharpen (sigma_tok~76 vs GPT-standard 0.02 giving ~1.6); add --untie and --tok_init; diag arms A/B/C Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn
2026-07-09	cascade ablation program: plan doc (5 claims, tiers 0-4), probe v2 ↵	Yuren Hao
	(jacobi/gsf/gsr schemes, full-theta gate, multi-batch), casc_bp_train ckpt producer Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn