DUB is a hub because it has a based former government owned flag carrier and political clout, so not something Scotland’s fragmented approach has. Ironically competition between GLA/EDI/PIK means the public wins on price but loses the chance to have world class facilities. DUB T2 is quite the advert for Ireland whereas GLA and EDI are just there to build shareholder value and not one penny more should be spent that doesn’t serve that. And I say that as a fan of free markets.....