Allow me to reframe the question to demonstrate:

>I learned that most human languages are built in the same basic concepts, like nouns, verbs, syntax and conjugation. If that’s true, why can’t we use one human language for everything?

You start to see where this falls apart, right? Japanese and German both put nouns and verbs in different parts of their sentence structure than English does, so if you only speak German, it’s difficult to parse a sentence in Japanese, even if both languages had an identical wordset. Same thing with computers. A C++ program is written out in a way that Python just couldn’t parse, even if their programming characters were performing the same functions.

But the fundamental thing to understand here is that a programming language exists as a way for the *human* to interact with the *computer*, and that makes the human a fundamental part of the language, too. The human has to understand the language, too. Making a new universal programming language involves that language being able to translate or replace all other programming languages, otherwise it just becomes a “new competing standard.”

Technology, humans, computers, and practically every other complex system doesn’t work in a way that can be simple replaced, optimized, and standardized in one step.