Dr. Vic Strecher of the University of Michigan addresses the important topic of digital health coaching in the video below. When addressing TEDMED recently he spoke of the potential to create personalized online messages for patients to help then change their health-related behaviors. While this may not qualify as "rocket science" it is huge as our nation's healthcare delivery system becomes increasignly financed by capitation and as we try to scale up delivery of services to larger numbers of people. The bottom line in the presentation is that people are more likely to pay attention to (and act upon) highly personalized messages even if those messages were in fact computer-generated.
Additional information about Dr. Strecher is available here. http://www.ur.umich.edu/update/archives/100122/innovator