A research website is easy to fill. A readable one is harder. The moment you write for readers who do not share your vocabulary, assumptions about sentence length, hierarchy, and tone become visible.
Specialist writing often hides its own context. A term that is precise inside a subfield can be opaque outside it. The fix is not to simplify the science, but to make the path into it visible.
English as a working language
English is the working language here because much of the relevant literature and many potential readers use it. That is a routing decision, not a claim about the value of other languages.
In practice, that means rewriting. Some paragraphs are shorter. Some technical terms stay in English because the English term is the working term. Some explanations are longer because the context is different.
What a good page really changes
A good research page changes more than words. It changes rhythm, examples, and sometimes the order of an argument. It also changes who the page is addressing.
Translation asks: how do I say this in the other language? Clear writing asks: what does this reader need here?
This site will keep changing as I learn who is reading. That is not a failure of consistency. It is the point.