Writing as an English person who'd be sorry to see the Scots go, feels like losing a sibling, but trying to be objective, I'd challenge your assertion it'd be

Writing as an English person who'd be sorry to see the Scots go, feels like losing a sibling, but trying to be objective, I'd challenge your assertion it'd be long period of pain like Irish independence. When Ireland went independent, they didn't have the EU single market on their doorstep. There were global economic problems during those 70 yrs e:g world wars. Whereas by rejoining the EU, Scotland can improve its economy much more quickly. Ireland is nowadays a very economically successful country. why shouldn't Scotland be too? Wind powered electricity could be a big export to replace oil and gas. Also Scots tend to favour paying slightly higher taxes for public infrastructure projects, which then give economic gain. An independent Scotland could invest in railways, education , all the other things that a sensible European country does which benefit everyone and lead to economic growth, but England doesn't do properly because keeping taxes down even if the resulting lack of infrastructure and opportunity impoverishes everyone , is the English Tories policy. If I were Scottish, I'd vote for independence in a heartbeat, but the whole thing is very sad as it seems like a family breakup, also can't see how we avoid a hard(ish) border between England and Scotland