John Carmack proposes fiber-optic loops as high-speed AI cache

The thought experiment began with a number. Single-mode fiber optics can now transmit data at 256 terabits per second over 200 kilometers. Based on that capacity, Carmack estimated that about 32 gigabytes of information are stored in the cable at any given moment.Read Entire Article

Feb 12, 2026 - 22:10
 0
John Carmack proposes fiber-optic loops as high-speed AI cache
The thought experiment began with a number. Single-mode fiber optics can now transmit data at 256 terabits per second over 200 kilometers. Based on that capacity, Carmack estimated that about 32 gigabytes of information are stored in the cable at any given moment.

Read Entire Article

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