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I don't disagree, but I still really really have a hard time caring about < 1ms of latency on a 50ms call.

But, if I had to pay the electric bill on 2.5 million servers, I would definitely care about wasting resources sending extra packets.

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That 1 ms translates to a much larger number in poor countries with everyone on 2G.

I guess I'd have to see the metrics on it in production, but my intuition is that a 2% improvement to latency would be even less noticeable on low bandwidth connections where the download times are measured in whole seconds.

It's really the packet loss and TCP backoff that's a killer.

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