A cozy band wrapped snugly around my wrist was easily the most fascinating reveal at Meta Connect. Called the Neural Band and bundled with the new Meta Ray-Ban Display glasses, it adds gestures and motion sensing that makes the experience feel thoroughly futuristic -- and full of unanswered questions.

I chatted with Meta's CTO Andrew Bosworth for some answers. Wearing the Display glasses himself, he discussed the special waveguides that make the lenses transparent, the potential of the neural band's electrodes and why higher-index prescription lenses for people like me still aren't available. Watch this: We Talk The Future Of Meta's Ray-Ban Display and Neural Band With Meta 18:54

Neural band as TV remote, keyboard or adaptive accessory

Bosworth says the electromyography-based

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