Vitalik Buterin
@vitalik.eth
Device-to-device audio communication (think QR codes, but made out of sound) seems very underrated. Much better UX than QR codes or NFC because you don't have to worry about putting your phone in the exactly right place or pointing it in the right direction. Anyone here with more detailed takes on this?
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Daksh
@daksh.eth
Yes, especially if sent on a high frequency. Someone should do a general sound frequency analysis of cities and areas. Would be helpful in figuring out the efficacy of such a system.
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