> s their level of communication and their information transfer speed as high as language? First, spoken language isn't extraordinarily fast. Most of us here h

> s their level of communication and their information transfer speed as high as language? First, spoken language isn't extraordinarily fast. Most of us here have experienced points in our lives where speech has seemed laboriously slow. Second, we have through much of recorded history, relied upon correspondence and the written word, where communicating a few sentences worth of ideas took weeks. It is not outlandish to think that complicated, colorful shapes on the cuttlefish's back (pictures in the link, if you need a reminder) could convey an entire sentence' worth of information. With a refresh rate of what, 5 seconds? More than enough for human-speech-level speed. Whatever other challenges they face, communication just isn't one of those.