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[–] TalkingAboutThings 0 points 2 points (+2|-0) ago 

What do you think they use to build the internet? Did you notice the distance specs for one of the modules in the article?:

The 400-Gbps modules provide reaches of 2 km (QSFP-DD FR8) and 10 km (QSFP-DD LR8) using eight 50-Gbps lanes with PAM4 modulation.

Who the fuck needs those distances for a LAN?

[–] toav 0 points 4 points (+4|-0) ago 

Large corporate campuses with cables snaking everywhere.

[–] vuke69 0 points 1 points (+1|-0) ago 

Many people. Dark fiber between datacenters is a thing.