What would the world be like if everyone spoke the same language? If no one spoke at all?

Having different languages have brought different perspectives in the world. This is because the terminology and the sphere of vocabulary varies from culture to culture. The different spheres of vocabulary and the definitions words convey in different cultures is most likely related to the traditions and values that culture has—which influences the culture’s perspective. Using this logic, we can conclude that the broader the range of different languages, the more perspectives and different view points will exist in the world. Knowing that having different languages has a direct influence on having different perspectives, it seems reasonable to claim that speaking the same language would lessen the range of our perspectives and more people would start to think alike. But this claim is not valid because knowing that we are humans a broad range of perspectives needs to exist, and if we couldn’t express that through varying languages we would deepen our specialist in the only one we did speak. 

There are certain words or phrases that cannot be translated to other languages, and this fact itself causes the existence of different perspectives. But if everyone spoke the same language, the need for having different view points would force humans to add precise details, and broaden the sphere of the vocabulary for that one language that every one spoke. By having a language with detailed vocabulary, clear definitions and broad terminology humans would have the opportunity to have a range of different perspective—Although the traditions and values would be more similar because a world with only one language would have very similar cultures. Even if there was no language to speak (or if no one spoke), humans would have found others ways for communication to express their emotions or their opinions—points of view—such as in-depth drawing, symbols, signs, sounds, etc.