想法 Remote Talk Cap
Making a narrow angle modulated light emitter and receiver headband, connectable via bluetooth to the phone, would make it possible to communicate with people at line of sight, directly choosing with one's head (like a laser pointer), whom to talk to.
想法 Human-Dolphin Childspeak Learning
Surround a human child with dolphins chat over sound filter to match human hearing, and get the first human naturally learn dolphin.
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