What does it take to communicate? Not just talk?

What separates humans from other species, yes even from the dolphins, is language. But dolphins do communicate! WTF?

So we have language. Language that hasn’t evolved, let’s say, for tens of thousands of years.

Language is the visible tool of communication.

We have language. And yet we know nothing about communicating. Yes, we talk. Talk a lot. But we don’t communicate.

What is missing for communication to happen is in the invisible.

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