> Language constrains your perception of reality to only the set of concepts conceivable within that language.

It's the opposite. People make up new concepts all the time for which they have no words, to then give it a name. Language is composable, words and names are just a mean to improve communication, make it faster, more efficient.

> Agents who only speak Rust have no conception of what runtime errors are, for instance.

Agents don't really learn. They have a fixed set of data and everything new has to be pressed into the prompt. This is unrelated to language.