Post #3824331
2026-07-08 02:55 UTC
So what are you trying to say? You signal goes up a few kilometers, then you’re in near vacuum in space where signal travels with proper light speed and results in faster transcontinental ping.
There are no clouds and atmosphere in space. That is what makes it space.
EDIT: Actually radio signals already travel near speed of light in the atmosphere. Only light in fiber optics is about 66% of speed of light.
EDIT2: Oh wow, a Chinese research initiative just achieved a breakthrough with hollow core fiber optics which does transmit close to the speed of light. This could render that advantage of sattelite internet moot! Upgrading cables is going to be a massive infrastructure project though.
Replies (1)
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@drmoose@lemmy.world 2026-07-08 03:12
and what’s in those few kilometers? not atmosphere? Sure the signal travels a bit faster between satellites themselves but this is not relevant in modern networking. Almost everything is cached on edge in your regional server these days so only “the last mile” is what matters for latency. Even if you ignore all this the math would still favor cable every time - 66% reliable speed of light will always beat “potential 100% speed of light sometimes for some part of the distance”