A technology system that enables direct communication between the human brain and a computer or digital device. Brain-Computer Interfaces (BCIs) use signals generated by the brain to control software, machines, or other technologies without requiring traditional physical input such as typing, speaking, or touch.

Some BCIs are invasive, requiring surgically implanted devices placed in or on the brain. Others are non-invasive and use external headsets, sensors, or wearable devices to detect and interpret neural activity.

BCIs are currently used primarily in clinical, medical, and research settings, including efforts to help individuals with paralysis, neurological disorders, speech impairments, or mobility limitations communicate or interact with digital systems.

The technology is also increasingly discussed within future-of-work, AI, defense, education, and workforce development conversations. Some researchers, companies, and futurists believe BCIs could eventually influence how humans learn, communicate, access information, interact with AI systems, or perform certain forms of knowledge work.

Although broad commercial adoption remains uncertain and likely years away, BCIs are increasingly viewed as part of longer-term discussions about human-machine interaction, cognitive augmentation, accessibility, and the future relationship between people and intelligent technologies.