This would allow caregivers to better tell if any changes have occurred to the cognitive abilities of an individual. It also could be used to help people recall where they were the last time they had possessed a lost object, such as the car keys.

The management of the home's physical plant is one major issue for improving the quality of life for an aging population.

Longer term, the interest will be in finding ways to handle the communications of vital information from the home to medical professionals that know what to do with the information. Say you have a network of nurses that care for an aging individual. There is a need for them to periodically connect, as well as a need for frequently sharing health-care information among medical staff, family, and friends.

We are starting to see brain changes ahead of cognitive changes. We don't know yet if it predicts that they will go on to get Alzheimer's disease. To do that, we will have to follow them for another 20 years.

I'm not forecasting these changes. These changes have already occurred at the wholesale level.

It's hard for me to fathom all the changes in technology that have occurred since I started in the industry.