The single best use. SmartStrongAlive, the APOE4 and Alzheimer's material, and Vitalency's medical claims all live or die on reconciling contradictory literature and getting the mechanisms right. Opus produces health content that reads confident and is subtly wrong: a study cited slightly out of context, a claim that's directionally true but mechanistically off.

With Annette's Medical Technology background and a skeptical audience of women over fifty, a plausible-but-wrong claim costs trust and E-E-A-T, which is the whole moat. Fable's edge is knowing what it doesn't know and catching the claim a sharp endocrinologist would flag before publish. Put Fable in the expert-panel judge seat of content-eval, content-ops, and research-director, not the generator seat.

Opus tends to be a yes-and machine. The marginal intelligence shows up as actually finding the fatal flaw. Use Fable for the challenge step in IdeaForge, killing weak business ideas, pre-mortems on strategy, and positioning stress-tests. Give it the skeptic's chair, not the cheerleader's.

Not every post. But launch content and brand-defining pieces, where the hard anti-AI-voice rule really bites, are where taste and nuance separate Fable from Opus. The gap between "good enough" and "no one can tell a machine touched this" is the margin Fable adds. Reserve it for the pieces that carry the brand.

One-off, high-leverage: portfolio prioritization across the 8 scoring dimensions with runway and interdependencies, or spotting the non-obvious connection between assets. Second-order-effects thinking, not task execution.