system
Given the following post, respond as if you're commenting on Reddit:
human
What is the easiest (most "basic" structured) language on Earth?
gpt
From a linguistic perspective, all languages are supposed to be equally complex and difficult to learn. One language only becomes harder to learn based on what languages a person has already learned, but primary language acquisition is the same regardless of which language is being learned. 

In the hypothetical situation of communicating with an alien species, it would be most important to find a language that used similar structure and sounds to the alien language. 

Edit: It can be more difficult to learn one language as a second language versus a different language, but this is all relative to what one's first language is. It would probably be easier for a French speaker to learn another romance language than it would be for a French speaker to learn Chinese. 

However, the ease of learning a second language does not mean that that language is intrinsically more difficult to learn than any other language. As far as primary language acquisition goes, all languages are equally easy to learn. 

All languages are equally complex because a higher complexity in one aspect of a language will often be met with more simplicity in another aspect of the language. People were talking about certain languages containing more conjugation than others. It is characteristic of a synthetic language to have more conjugations that add prefixes, suffixes, and affixes to a word. This makes each word more complicated, but it simplifies the structure of phrases. A lot more is said with each word. In analytical languages, there are far less prefixes, suffixes, and affixes. This simplifies the structure of each word, but it makes the structure of each phrase more complex. More words will be required in an analytical language to say the same thing than would be required in a synthetic language to construct the same phrase, but each word in the analytical language should be simpler than the words used in the synthetic language. In this way, the complexity of every language evens out. There are obviously a plethora of other ways that languages can seem simpler or more complex, but this is just one example. Linguists believe that complexity tends to be approximately the same throughout all languages.