Even some human languages were so complex that the slightest variations in tone or inflection could make the language nearly impossible to learn. The Navajo language was a perfect example. Their system was so complicated that unless you were born into the language, you would never be able to fully grasp it as an adult. This was the reason it was so successful when used in World War II against the Japanese. Could the dolphin’s language be the same way? Could IMIS think it was translating something that it actually wasn’t?