3/4. The Supercity and Its Shadow. Move the British capital to Yorkshire? That was one of the options debated in the 1960s in order to try and reduce London's domination of the UK. Sharing population and economic power across the country is something politicians have often talked about. But, as Chris Bowlby discovers, the pull of London as global city and capital of everything has intensified. Negative images of the north have deterred any fundamental shift of people and power in its direction. Could things have been different? Producer Smita Patel