
Wifi, 5G and smartphones give the image of a wireless world. However, if we know the Internet as it is today, it is thanks to submarine cables: they channel nearly 99% of international traffic. Indeed, satellites only play a very marginal role.
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1.3 million kilometers of submarine cables lie in the depths of the oceans. They are largely unknown, but without them the Internet would not be the same. Without them, it would be impossible to exchange instant messages from one end of the planet to the other, to use streaming services or to work remotely as was the case for millions of employees during the pandemic. Although submarine cables are relatively unknown, there are more than 420 in the world in 2021, that is 1.3 million kilometers of fiber optic cables crossing the oceans and connecting the continents.


This world,

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