Enhanced hearing

"This article in Wired, the U.S. technology and futurism magazine, says manufacturers are now producing aids that even someone with "perfect" hearing can use to enhance the experience of certain sounds. An example of how a medical technology ended up becoming almost a luxury product like colored contact lenses."

Yes, I am hoping this is a trend. Technologies used to free people of their disabilities will be adapted to enhance those without them. This will probably make an "us" and "them" view of a world with advanced robots a bit limited.