As an investor in AI, I'm sensitive to the narrative that technology is subtracting humanity from our interactions. As the story goes, we've become so efficient at delivering exactly the content that appeals to predisposed biases, that everyone burrows more deeply into their digital worlds and connects less with each other in person. This results in developing deeper relationships with devices than fellow human beings, which can lead to increased isolation and loneliness. There's some truth to this idea. But a new use of technology is now serving as a lifeline to catch people before they slip beneath the surface.