The missing middle between ICL (temporary) and fine-tuning (permanent).
Extract behavioral directions from activation space, test immediately
without training, convert to permanent weight changes via Apollo.
Key application: extract 'listening' steering vector TODAY, test it
in vLLM, verify the direction is right BEFORE spending training
compute. The steering vector is the prototype; Apollo training is
production. Test before you commit.
Applicable immediately via vLLM inference hooks — behavioral
improvement without waiting for the full training pipeline.
