Chapter One: The Man Deleted by the World

Existing models could segment tumors or predict drug response, but they could not heal. To map treatment into reality, he needed more than a diagnostic engine. He needed a closed loop connecting molecular-target discovery, protein folding, and personalized immune protocols. Corporations trained such systems on thousands of accelerators. Lin had seventy-two hours. He opened three years of personal code: a compression framework, a medical knowledge graph, and a causal-inference module rejected by management. He fitted them together and named the project Firefly. It was not large, but every layer could explain itself. It could not memorize the whole medical world, but it could admit what it did not know.