Spoiler warning: Spoilers for the complete film.
Michelle disconnects Christopher at his request, shutting down the network powered by his captive brain. The Electric State makes finding her brother lead to a second loss: bringing him home alive is not the rescue the system allows.
Why can’t she simply take him away?
Christopher’s living body has been incorporated into Sentre’s infrastructure. Military drones and neurocaster devices depend on him. Michelle uses the technology she has avoided to speak with him directly before ending that connection.
The discovery changes the moral terms of her search. His continued biological survival has been used to justify keeping him as equipment. Releasing him means recognizing his wishes rather than preserving the arrangement because she cannot bear another goodbye.
After the shutdown, Sentre’s exploitation becomes public. The company loses the secrecy that made its apparently convenient technology possible.
What survives the final battle?
Herman survives through a miniature version concealed within his larger body. That reveal supplies a clear continuation for Keats’s companion, whereas Christopher’s fate remains a loss Michelle has had to accept.
The distinction matters when Cosmo moves again in the landfill. That moment suggests some part of Christopher could persist, but it does not show his body restored or explain exactly what consciousness remains inside the robot.
It is reasonable to read the movement as hope. It is less reasonable to turn it into a complete technological account the film never provides.
Is the ending against all technology?
Michelle’s public message follows the exposure of a system that consumed a child while claiming to improve human life. Her alliances with robots prevent the conflict from dividing neatly into good humans and bad machines.
Sentre’s essential failure is treating a person as infrastructure and other beings as disposable. The ending breaks that arrangement through cooperation among the people and robots it separated.
Cosmo’s small sign of life leaves a space for connection after the machinery of control has stopped. It softens the goodbye without making Michelle’s decision cost nothing.
Sources: official ending breakdown.