In the doldrum days between Christmas and New Year, we take a family trip to see a datacentre. Over the past two decades, datacentres have become a common sight on the outskirts of Dublin and many other Irish cities and towns. Situated in industrial business parks, they are easy to miss. But these buildings are critical to the maintenance of contemporary life: inside their walls stand rows and rows of networked servers; inside the servers, terabytes of data flow.It’s a seven-minute drive from wh...