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Key Points

Key Takeaways

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    Direct Uplink

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    Neurosity Crown: Reads brainwaves and selects Spotify playlists. Just by thinking 'Focused', music fades out and Slack becomes Do Not Disturb mode.

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    Muse S (Gen 2): Specialized for sleep and meditation. Converts whether brain is relaxed (Alpha waves are emitted) into sound in real time and gives feedback.

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    Quantified Self: Graph when your 'Concentration' peaks and what hinders it. Work with data, not intuition.

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    Future: Accessibility revolution where you scroll or click just by thinking is starting.

Introduction: I/O Bottleneck

The speed of thought is close to the speed of light, but the speed of fingers outputting it is too slow. Elon Musk’s Neuralink embeds a chip in the brain, but we want to do the same without drilling a hole in the skull.

Non-invasive BCI (Brain Computer Interface) is a creative “Hat”.

1. The Developer’s Crown: Neurosity

An EEG readable by JavaScript. SDK is published, and you can write event listeners like crown.on('focus').

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Neurosity Crown

Equipped with 8 EEG sensors. Easy pairing with NFC. Using official app 'Shift', play Spotify's 'Deep Focus' playlist the moment concentration increases.

Amazon

Notion Integration

Detects “Focus drop” and automatically records current task to Notion and “Proposes a break”. Such automation can be built.

2. The Meditator’s Headband: Muse S

There is a reason why Silicon Valley CEOs all meditate. Because it’s brain defrag.

Muse S is a meditation trainer. If the brain is quiet, you hear “Birds chirping”, and if distracting thoughts arise, you hear “Storm sound”. This biofeedback allows you to control the depth of meditation.

3. Comparison: For Combat or Rest

項目 Neurosity Crown Muse S (Gen 2)
Usage Productivity/Dev Meditation/Sleep
Sensors 8 Channels 4 Channels
Fit Hard (Crown) Fabric (Headband)
For Developers Node.js SDK API Limits

4. Ethical Considerations: Rights to Brainwave Data

Your search history is held by Google, but should you hand over brainwave data too? Data that “Emotion did not move even after seeing advertisement” might be inconvenient for marketers.

Neurorights is a hot topic in 2026. Choose a device that can process locally.

Conclusion: Implementing the Sixth Sense

No need to psych yourself up saying “I will focus”. The device reads your state and optimizes the environment (lighting, music, notifications).

You just surrender yourself to the flow.

# bci # neuroscience # neurosity # muse # productivity # 2026