> Language is a tool

While this is true, it is not just a tool. Or, I should say it’s a tool with far greater utility than just winning an argument or making a localised point. Language is how we think, and the ability to reason well is absolutely dependent on our skill with language.

Language is the mark of humanity in the sense that how else can I convey to you a fragment of my inner state? My emotions, my feelings, my desires. The language of poetry and literature. That which sparks an emotional response in another.

Dumbing down language is dumbing down period.

> Dumbing down language is dumbing down period

I agree. But I don’t always see it as dumbing down. James Joyce’s Portrait starts out with a lot of nonsense, that doesn’t mean it’s dumb or dumbed down. It’s just communicating something that is best described that way. Even to an erudite audience.

I have expertise in some topics. I don’t think of communicating that in lay terms to be dumbing down. The opposite, almost: finding good analogies and expressing them clearly is a lot of fun, even if what comes out the other end isn’t particularly sophisticated.