Ships anchors and trawlers are major risks for subsea cables. Deeper is thus better. Underwater geography is also a major consideration. It's not just the goin

Ships anchors and trawlers are major risks for subsea cables. Deeper is thus better. Underwater geography is also a major consideration. It's not just the going up and down, it's the risk of landslides, tectonic shifts, volcanoes, currents and icebergs scraping the ocean floor. On top of that are geopolitics and enviromental concerns.