Mostly the media commentary about Brexit is conjecture. However as far as Scotland is concerned there is a fact that should not be ignored. The devolved government in Holyrood was set up by a UK Act of Parliament and could just as easily be done away by the MPs at Westminster as Pete Wishart MP writes. The Tories have a majority there and Theresa May could get rid of the thorn of the Scottish Parliament if she judged that to be in her interests vis a vis Brexit. That would leave Scotland unable to influence or decide its own future.
Brexit at the moment is all politics, nothing decided and all to play for so Nicola Sturgeon’s Brexit plan is part of the political chess game she is playing with the UK government. So are her visits to European leaders and to Dublin. By giving Scotland such a high profile on the Brexit scene she is hoping to make any foul play by Theresa May more difficult to carry out. To date her reasonable and practicable ideas and plans have found much favour and will be hard to ignore. What is more she is keeping alive the sense of destiny that grips many Scots at the present time.
Commentators saying she will not achieve what she would like are probably right but better to play for high stakes than tamely give in to a lifetime of Tory rule direct from Westminster.
For a very detailed look at the Scottish parliaments powers and the fact that in UN terms the UK is defined as two countries read the Grouse Beater.