Trachea I think is the answer?
I believe the answer will be the medieval period
Answer:
Yes of course. We already have devices that can read facial expressions and respond to them. At some point technology will evolve to the point that it will understand hand signs as well. It can be used to support a conversation with someone who is hard of hearing, or teach people how to sign in ASL without an actual teacher.
Explanation:
It was The Terrocata Army
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