Dear god, make it stop.
I don't understand the timing. Maybe as plectrum said, she feels Scotland is damned if it does, damned if it doesn't and, in some ways, I don't really blame her for that. I can't believe the car-crash that will be Brexit, even though I think I understand how the vote happened in England and Wales.
A truly altruistic approach to Scottish independence would use the next 10 - 15 years to invest massively in Scottish education and business, get the economy going robustly, then seek independence.
How does Nicola even think the economics stack up at the moment? Even if EU membership is accepted for Scotland (and at the last referendum, it met none of the economic criteria), how does she think Scotland will have even a fraction of sway or power that the UK, as a massive net contributor, did in the EU?
What level of cognitive dissonance must there be for her to reject a large single market in favour of a less important one?
I do get Scotland's frustration with Westminster, but I don't think separation from the UK is the pragmatic, logical answer. I think the quest for independence asap is still largely based on a deap-seated antipathy towards the English.