After witnessing first-hand the tragic consequences of extreme social isolation, which led to a neighbour dying eight years before he was found, Anthony Cuthbertson looks at how technology is offering a small fix to a problem it helped create Content warning: This story contains graphic descriptions of death that some readers may find disturbing. Every two days, you have to push a green button to confirm that you are alive. If you don’t, it triggers an automatic email alert to your appointed