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A comment on Hacker News front page now, but the titles are honest. Parent comment

Re:Hacker News front page now, but the titles are honest by Scaevolus on Friday December 19, 2025 @11:04AM (#46327289)
You can use fiber optics as an optical delay line too! About 60KB/km at 100Gbps.

https://en.wikipedia.org/wiki/Delay-line_memory

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