A brain/computer interface. But like you say, depending on the state of tech companies maybe only as an input (I can manipulate computers without allowing them to send a signal of any kind to me).
It'd just be for stuff like mentally dictating note taking, being able to "Google" my thoughts (probably best to send the output to my phone rather than directly into my brain)
Oh awesome. I've never heard of it, I'll have to check it out