It’s all so fragile, isn’t it? The economic recovery, the systems that support our way of life, the web of connections that support our societies. As the Covid-19 virus unfolds, I keep hearing people saying how fragile it all is. And yet we’ve always known the our interconnected world was a fragile one. It’s just that we are starting to see what that fragility means, in practice. You only learn about an object robustness when it is dashed accidentally off the floor. Sometimes a glass might survive, an egg might bounce, a knife might shatter. It depends on the manner…