The voters are poor losers. That could never happen here.

When Scotland voted on independence in September 2014, Nicola Sturgeon, then the deputy leader of the Scottish National Party (SNP) and now its leader, described the referendum as a “once in a generation” event.

I suppose the definition of “a generation” is flexible. To Sturgeon, it evidently means “four years”: She now wants another vote next fall.

What has changed? Not public opinion. The polls have barely budged since the last referendum, which resulted in a 55-45 vote against separation. Scots are an admirably bloody-minded people and, when asked the same question, they tend to respond the same way, only with added emphasis. Fewer than one in three Scots favors a second poll, and the SNP’s insistence on one strikes even pro-independence voters as the act of a bad loser.