Dr. Mahler exploits this state not for Jacob's survival, but to use his CORE implant. Because Jacob’s memories were synced with Dani’s in the base game, Mahler uses his dying brain as a "Wi-Fi extender" to transmit evidence of the UJC’s crimes to Dani, who is already off-planet.
In truth, Jacob has been eviscerated—missing his lower body and limbs—and is being used as a "living meat puppet" to maintain a neural link. 2. The Purpose of the Fracture Stav trhliny Callisto Protocolв„ў
What is Final Transmission even about ? : r/TheCallistoProtocol In truth, Jacob has been eviscerated—missing his lower
Most of the final chapter is a "fractured" mental construct. Jacob believes he is fighting through new areas of Black Iron Prison to find an escape ship. : r/TheCallistoProtocol Most of the final chapter is
The "rift" represents the growing divide between Jacob’s sensory experience and his physical reality. Following the main game's conclusion, where Jacob sacrifices his escape to save Dani Nakamura, he is found by Dr. Caitlyn Mahler. However, instead of being rescued, Jacob’s mangled body is placed on a gruesome life-support system.
The shifting, nonsensical layout of the prison during the DLC is a visual manifestation of Jacob’s "rift" from reality as his brain begins to shut down.