The future is fixed.
Why it is hard sci-fi
Garlands eight-episode series about a quantum-computing research group at a Silicon Valley firm. The shows central claim is that a sufficiently large quantum simulation can reconstruct any past or future state of the universe deterministically, and that determinism is the working assumption of the lab. The procedural texture is research and corporate. The show is one of the few TV portrayals of a research lab as a working institution with hardware, security, and a working political backstory.
Science inside it
Quantum computation at sufficient scale to simulate a universe, a many-worlds reading of the same simulation that the show treats as a real engineering choice, the philosophical commitment to determinism as the labs working assumption, and a procedural engagement with the corporate-security shape of an asset that valuable.
Spoiler alert
The final episode reveals that Forest, the founder, has been running the simulation to recover his dead daughter, and that the labs first pre-launch demonstration of the simulation crashes the system at the moment Lily acts contrary to the deterministic prediction. The show commits to a many-worlds resolution. Lilys deviation is itself the proof that the system is now running a non-deterministic branch.