>where everyone's laptop would emit a unique high frequency, This sounds like an awful idea. https://www.science.org/content/article/sounds-you-cant-hear-can-

>where everyone's laptop would emit a unique high frequency, This sounds like an awful idea. https://www.science.org/content/article/sounds-you-cant-hear-can-still-hurt-your-ears https://www.science.org/content/article/sounds-you-cant-hear...