Teribus it is absurd to suggest that because a vote was made once then there can never be another vote again. That isn't how it works. If it did work like that then we wouldn't even have a devolved parliament as the first devolution referendum was lost. The point is that the people of Scotland will decide whether there should be another vote or not. I tend to agree with Musket that for there to be another one, at least in the short/medium term, then there would need to be some real upheaval going on. So one scenario might be if a Tory/UKIP backed gvt seemed to be heading for the European exit door. I suspect that Scotland would then ask itself what it should do.