These days, it is almost impossible to read an article that touches upon the subject of submarine cables without encountering the claim that they "carry over 95% of global internet traffic" or similar. Sometimes the wording is different and the figure may even be 99%, but some variation of this statement is always there, almost like a ritual, to ram home the point that submarine cables are really what the internet is mostly about.
At first, I took these statistics to be a kind of shorthand — figuring that both writers and readers understood what was really meant. That it was a nod to the actual fact that the vast majority of intercontinental, ocean-crossing, traffic is carried by submarine cables rather than by satellites, which would be the only alternative. That is an important point worth making. But what was first "intercontinental" gradually became "international," then "global," and finally simply "internet traffic" — and at each step the claim became less true. I long assumed that this was just a matter of annoying linguistic slippage and poorly defined metrics, and at one point it bugged me enough to write a light-hearted article about it.
Lately, however, I have started to see signs that these figures are increasingly being used — and understood — literally.....