With regards to dermatoglyphics, we also realise why some people are so good with words, others are good in athletics. These abilities are inborn, since the day we were fetuses in our mothers’ womb. However having those kinds of qualities do not necessarily translate you into a genius in those areas. One must still have a nurturing environment to help you develop those qualities.
Back to translation. For those who are learning a third language, it is also important to immerse yourself into that environment so that you can pick it up faster. Non-native linguists who stay for long in a country would tend to understand even the localised terms. A language comes together with the culture. Thus building language bridges would allow one to build culture bridges as well!