Hearing aids now have an OTC (over the counter) bill passed in the FDA. Senator Warren lobbied for the bill for Bose. I think Bose is going to attempt to break into the D2C space with hearing aids.
This is a strong area of personal interest for me. I think BCI will eventually begin to incorporate those ideas of turning external stimuli such as haptics into representations of data our brain can understand.
ML is popular because it’s a set of learning algorithms that we can feed numeric data and output some learned prediction. Once we learn how to feed this numeric data to the brain (similar to the tongue sensor or a haptic vest), then we have the most efficient learning algorithm consuming and making sense of this data!!