Prof Sir John Curtice says it was not an easy speech for Nicola Sturgeon to make. She spent most of her time defending the record of the Scottish government, he says. That was not sufficiently exciting for most of the people in the hall, Prof Curtice argues. It matters to her but it is not central to most of the delegates, he believes. Prof Curtice says Ms Sturgeon's next step is to wait for the outcome of the Brexit negotiations, and that everything now depends on a meaningful vote on any Brexit deal.