In this pivotal chapter titled 'Cortical Stacks', the narrative delves deeper into the character of Case, a once-prominent hacker now reduced to a life of despair and addiction in the gritty streets of Chiba City. The chapter opens with Case engaging in a routine of self-destructive behavior, showcasing his psychological and physical deterioration after damaging his nervous system during a previous hack. He is unable to connect to cyberspace, the virtual realm where he once thrived, and is haunted by his inability to return to this world.

As the story unfolds, Case's life takes an unexpected turn when he encounters a mysterious figure named Armitage. This enigmatic character represents a glimmer of hope and redemption for Case, who has long resigned himself to a bleak existence. Armitage, a representative of a powerful corporate entity, approaches Case with an intriguing proposition: a chance to restore his hacking abilities in exchange for undertaking a significant and dangerous mission.

The concept of 'cortical stacks' is introduced in this chapter, alluding to advanced technology that can store and transfer human consciousness. This technology symbolizes the intersection of humanity and technology, a recurring theme throughout the narrative. Armitage's offer not only presents Case with the possibility of regaining his lost skills but also raises profound questions about identity and the implications of technology on the human experience.

Armitage's confident demeanor and authoritative presence contrast sharply with Case's vulnerability, establishing a power dynamic that will influence their relationship moving forward. As Case weighs his options, he is torn between the allure of redemption and the risks involved in accepting Armitage's offer. The chapter effectively captures Case's internal struggle, reflecting his desperation and longing for a sense of purpose amidst a chaotic and indifferent world.

In conclusion, 'Cortical Stacks' sets the stage for Case's journey toward redemption, highlighting the complex interplay between technology and humanity. The chapter serves as a crucial turning point, introducing key themes and characters that will shape the trajectory of Case's narrative as he navigates the challenges of the cyberpunk landscape.