I just feel that the whole humanity should speak one common language. Now whether you like it or not that language is going to be English. I just dont understand why do we need multiple languages anymore. If anyone says we need them to preserve the culture, I dont understand that either. My native language is not English, just in case anyone feels I want to force English down your throat.
As someone who speaks both English and a tad of Chinese, I am aware of instances where there are words in either language that can't be easily said in the other.
You'd think with a good enough command of English and logic you could necessarily translate any word of any other language in the universe.
However, I suspect it is not that simple. Some words invoke particular neuronal activity that encodes a particular thought which may be hard to replicate through the usage of a clumsy translation. Thus a difference in language may also be a reflection of a difference in culture and way of thinking.
Since people around the world care about different things, they will use different words more frequently, attach different connotations to them, and even invent new words whose usage you'd find to be isolated to particular geographical regions. So, the selection of a common language is almost like the selection of a particular way of thinking. The notion of cultural uniformity/superiority can rub people the wrong way.
So if there is to be a common language, it would be more considerate if it incorporated features from different languages, rather than be entirely from one language (English), and it should probably be engineered to be somewhat culturally agnostic.