this post was submitted on 22 Oct 2023
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Holodecks soon?
considering the lab experiment with just one laser required a sound level of about 140 decibels that consume 20 gigawatts, I don't think holodecks are going to be a practical device.
Great points, but you know how things go. Proof of concept is a bloated laboratory implementation, then the tech gets smaller and more efficient over time. Next thing you know the sound is outside of human hearing range and the laser projector is fitted to a drone.
According to the article it's already using ultrasound.
Ultrasound at 140 dB which can still seriously damage hearing, you just don’t hear it happen.