From a practical point of view, it seems that most of the spoken languages work well enough as they do not disappear and they allow a quite advanced social organization. Nonetheless, two obvious assessments must be done.

First, it exists about 7000 different languages, some of them really different the one from the other. On top of that, languages change over the time Necessarily, they do not transmit thoughts in the same way and it is very likely that some of them better describe the reality than others. Why is it that these languages are more precise?

Second, the world is also evolving and the understanding we have of the universe too. Therefore, our languages must adapt to these new realities. As it is pretty impossible that the improvements we bring to our languages always fit for the reality changes, then there must have a gap between what exists and what we are able to tell.

Quite appalling, isn’t it ? Yet, it is not ended.

Before wondering whether our languages are able or not to convey what we really think, it would be interesting to state what is the reality and what are the links between the reality and what we say. 

As commonly admitted in philosophy, the reality can be seen as the set of all the phenomena that have an influence on something previously considered as real. Thus, once we collectively assume that something is real we can trace back all the reality. That’s fine, we know what is the reality.

Now, when we want to accurately interact with our environment, we absolutely need to take into account what we consider as the reality - and to remain as close as possible to it – so as to actually act on our environment in the way we want. Otherwise, if we were randomly acting, it would just be impossible to interact with anyone or anything, because the reality is the only structure we all share and through which we all live. Well, one of the most important step when we want to interact with our environment and those sharing it with us is the communication and, thus, our languages. That is why having precise languages is absolutely essential. If our languages were not complete for instance, it would be impossible to correctly describe this reality. Assuming that our minds are powerful enough to correctly feel, assimilate and finally understand what is around us; we then need a highly precise language. We finally understand what are the relations between the reality and our languages, but these relations are not the only one that make the spoken languages a key part of the human system. 

 Your language also has the mission to create in the mind of the others something that may exist only in yours. On the one hand, our minds may not be able to correctly represent what is the reality but on the other hand our thoughts are not limited to the reality. The first point is not so important because we can assume that we all roughly have access to the same understanding degree of the reality, so it does not matter if we do not really figure out what happens, what we feel, what we see etc… However, it remains absolutely frustrating to think that, whatever you have in mind, your language is not be able to tell the others what you think… Poets like Baudelaire seem to have experiment this limit of our words and minds. 

Some significant observations that can be raised from this work are : 

- linguistic effects are quite hard to identify because of the large number of processes involved in perception tasks. The experiment presented above is designed so as to precisely focus on linguistic influences and to take other memory or subjective judments influence away from its object. 

-  Russians benefit from a categorical advantage due to the exisence of two words for the "blue" color  in their language. Namely, they are fatser than English poeple when they have to match the colors.

- this advantage vanishes when subjetcs are submited to a verbal interference, that is to say when they cannot use their linguistic abilities to make their choice. Because of this observation, one can conclude that language is involved in tasks that are not seemingly related to the speaking. 

To conclude, some languages use several words to describe something summarized by only one word in other languages. As a consequence, speakers who have more words easily make a difference between realities that are precisely represented in their language.