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Brain-computer interface (BCI) possibilities for the future include direct interaction with identity systems via neural signals. Users could authenticate credentials, sign documents, or control privacy settings using thought patterns. BCIs could translate brain activity into verifiable credentials (VCs) for secure access to devices or services. Combined with AI, BCIs might enable real-time identity verification in high-security environments (e.g., airports). Ethical considerations (e.g., consent, data security) will drive research, but BCIs could revolutionize accessibility for users with severe disabilities.
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