SA Forum is an invited essay from experts on topical issues in science and technology. This column was produced in collaboration with the World Economic Forum. Justine Cassell is director of the Human–Computer Interaction Institute at Carnegie Mellon University. Read the full article here, and read more about Cassell here.
Imagine you have a great-aunt, a vibrant woman in her 70s who refuses to be trapped in a rocking chair. In fact, she holds a full-time job and insists on walking there and back, a couple of miles each way. She says it keeps her young, but you can’t help worrying. No one is healthy forever.
Like many people her age, your great-aunt follows a set routine. Before her trip to work, she stops at a nearby café for a cup of
So far, most QS sensors remain on…
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