Two weeks ago, an accident in the Red Sea sliced through three fiber-optic telecommunications cables that carried phone calls and connected Internet users in Africa and the Middle East. Then, on Saturday, a ship dropped its anchor at an inopportune spot off the Kenyan city of Mombasa, severing another cable. With those four cables out of commission, a single cable is left to shuttle information into and out of East Africa, slowing down connection speeds by 20% in six countries in the regions for weeks until the other cables are fixed.
It seems, in the increasingly interconnected and wireless world, like a clumsy system at best to rely on cables crisscrossing the ocean floor—particularly when two relatively small maritime mishaps are enough to throw that system out of whack. But as Clay Dillow explains over at Popular Science, these undersea links are actually an impressively efficient, powerful, and—yes—stable way to connect the globe: