Today, over 98% of information worldwide travels undersea on 450 submarine cables all around the globe. Tools in the service of economic and social development, essential infrastructure for our daily lives, instruments in the hands of nations, these cables remain largely unknown.
At a time of exponential increase in our data consumption, this panoramic survey of such infrastructure examines the major issues it raises: the tech market and how it works, the political role of communication lines, the international legislative framework, and the environmental stakes.