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.
The auther is saying that this is important for kids and parnet because its asking the parnets to make big and important decisions for there kids and what teachers can do to improve the kids
