i'm going to bejoined by the big boss of autodesk. it's the world's top software designers for architects. wherever you'rejoining me from around the world, once again, a big hello and a warm welcome to the show. you know, our cities, they're home to governments, cathedrals, universities, hospitals, hundreds of millions of homes and billions of people. they dominate the global economy, but they also generate the vast majority, 70%, of the world's carbon emissions. the world, it has become more populous than at any point in history. and since 1980, the proportion of people living in urban areas, it has soared. in that year, it was just over 39%. by 2007, for the first time, more than half of the global population were living in an urban setting. and here in 2024, that number is now nearly 60%. it's projected to be 68% by the middle of this century. and if that trend continues, more than 80%, or four in five of us, will be living in towns or cities by 2080. that means there'll be six times as many big cities with a population of more tha