Ahead of the elections to the Scottish Parliament on Thursday 7 May, Alastair Donald and Rob Lyons talked to Dean Thomson, author of Scotland Undone: Nationalism, Dogma, and Decline in the Devolution Era. In a wide-ranging discussion, topics included:Thoughts on what will happen in the election, including the fall and rise of the SNP, the Reform UK insurgency, the decline of Labour and ConservativesThe much-forgotten 'double out' voters who want to leave the UK and voted to leave the EUHow devolution came about and how the SNP went from opponents to claiming it as their ownThe rise of the 'lanyard class' in ScotlandThe prospects for the future - do we need a more federal UK?