Dongjin Seo

Dongjin Seo is the co-founder, president and COO of Neuralink, where he leads work on implantable brain-computer interfaces aimed at restoring autonomy for people with paralysis and expanding toward applications such as speech and vision restoration. He previously earned a PhD in electrical engineering and computer sciences at UC Berkeley and was known for early neural-dust research.

Neuralink Says 20-Patient Scale Is Advancing Brain-AI Interfaces

Neuralink co-founder and president DJ Seo told Sequoia partner Shaun Maguire at AI Ascent 2026 that the company has moved from a single human implant demonstration to more than 20 patients, while still treating its current work as restoration of lost function rather than elective enhancement. Seo argued that Neuralink’s larger aim is not faster computer control but a higher-bandwidth interface between brains and AI, eventually enabling direct, multimodal transfer of concepts. The path there, he said, depends less on a single implant breakthrough than on scaling surgery, robotics, manufacturing, clinical evidence and neural-data models.

Sequoia CapitalMay 28, 202612 min read