We have to forget our self-protective habits in order to discover our shared challenges. But what science alone does not do is build the motivation for a deeper level of connection. We act effectively not just when we find a language in common to identify problems, but when we recognise that those who share these challenges are profoundly like us, to the extent that we can to some degree feel their frailty as if it were ours – or at least, feel their frailty impacting directly on our own, so that we cannot be secure while they remain at risk.