$1.5 billion: The cost of cutting London-Tokyo latency by 60ms

Aled Morris aledm at qix.co.uk
Fri Mar 23 07:31:13 CDT 2012


On 23 March 2012 11:53, Eugen Leitl <eugen at leitl.org> wrote:

> All three cables are being laid for the same reasons: Redundancy and speed.
> As it stands, it takes roughly 230 milliseconds for a packet to go from
> London to Tokyo; the new cables will reduce this by 30% to 170ms. This
> speed-up will be gained by virtue of a much shorter run:




If they could armor the cable sufficiently perhaps they could drill the
straigh line path through the Earth's crust (mantle and outer core) and do
London-Tokyo in less than 10,000km.

Aled


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