Nowadays you can search for an address online and see it in a number of ways: ‘street view’, ‘map view’, or – my favourite – ‘satellite view’. I’ll go to the housing estate where I grew up, or my grandparents’ houses or my old flat in Granada or Brussels, zooming in and trying to make out abstract blocks and shapes in back gardens. More often than not it’s a futile exercise: what you remember is long gone. Memories feel earthy – blurred and diluted by time but real somehow. And you realise that they now exist only as faint afterimages in one or two heads.