Three different projects are planned, with the first starting this year. The new cables will connect London and Tokyo, and one will offer branches to Arctic communities in Canada that have largely depended on satellite links.
All three will reduce the time it takes for a piece of data to get from London to Tokyo from about 230 milliseconds to 170 milliseconds. That may not sound like much, but the delay (otherwise known as latency) is noticeable if you’re in the financial industry, where profits and losses can depend on how fast you can get a trade through. For more mundane users, a tenth of a second is a noticeable lag when transmitting video.
Full story at Discovery News.