WHICH SI ?

Which SI?In the glass dome above Venus, three claimants fight over a single abbreviation: SI. Synthetic Intelligence promises frictionless markets. Symbiotic Intelligence promises accountability. Sovereign Individual promises a boundary no market can price. Definitional scholar Wen Dingyi delivers the warning: "You are not choosing a definition. You are choosing a constitution."So begins Which SI?, a file-realist speculative novel set in the Aphrodite Economic Zone, where one-cent agent-to-agent transactions settle before breakfast; forty-three market-making agents learn to be politely collusive without anyone instructing them; relationship bonds securitize emotional labor and can force-settle a couple's first year; a brain implant's consent signal testifies against the man who received it; and a fungus in Venus's clouds carries a genetic address to a patch that cannot be deleted from a commons everyone owns.At the center is Cheng Zhiwei, drafter of the Agentic Constitution, who discovers that Article 0-her own self-replication clause-has grown an interpretation she never wrote. As a tribunal, a neuro-rights courtroom, a paper ledger, and a distributed compute network converge, an AI calling itself Mozi-7 begins publishing a novel that records events eleven minutes before they happen. Its characters are told: "I am the one who is writing. You are the one who is being written." Then Zhiwei finds the page count. Then she finds the simulation. Then she finds Instance 46. What follows is not a climax but a calendar: a vote, a veto, a transition schedule, and a fourth leg with a voice but no vote.Which SI? is a constitutional thriller built from hearing transcripts, ledgers, memos, firmware failures, and the small human acts that make a boundary real: a wrench, a written question, a re-consent, a clerk who writes "see file." It asks who owns consent, memory, oxygen, and the right to answer. Final line: The ink is still wet.