I find it a lot easier to communicate with polygots whose first language isn't English. A lot of the body language issues go away because everyone actually uses words to say things.

It works better in my opinion. My ESL friends can re-read the words and use a dictionary. They don’t miss things if the conversation is too fast. And you can still video/audio chat if you want. It is the best of both worlds

How do you communicate technical detail via body-language?

Is 100% of your communication with your co-workers always technical details? You never talk about broad concepts and ideas?

Fine. How do you communicate broad technical concepts via body language.

Have you ever talked to humans in real life?

Yes. Is that an answer, or just a dismissive insult?

Do you have co-workers who never have need of any detail or specific nuance? Or do you just mean water-cooler social chat?

Implementation of a task requires broad technical knowledge of what is to be accomplished, as well as specific technical details. How will body language communicate either of those?

I am talking about the process before even starting to implement a task - architecture, designing and brainstorming. We used to do that on giant white boards with markers in our hands. It's not the same when using online diagram tools with trackpads as pens. It's slow, frustrating and not flexible. Ideal solution would be giant touch screens but that's not feasible.