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And Speed of light within Glass. We could still get that 1/3 back when we could somehow make ultra long distance hollow cable. We could get that Packet round trip from 150ms to 100ms.

But I dont think hollow cable are anywhere close to commercial launch.

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Starlink will get us there for at least long-distance connections once they have the laser inter-sat links fully connected.

At that level of optimization, the problem is not isolated. With Starlink the gain by using lasers is potentially lost with the additional processing that needs to happen when bouncing over multiple satellites.

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