“…is demonstrated that the integrity of the earlier litigation process … has been critically undermined”. In Barclays Bank Plc v Guy (No 2) [2010] EWCA Civ 1396, [2011] 1 WLR 681, Lord Neuberger M.R. said that reopening might be justifiable if “the judge had completely failed to understand a clearly articulated point”, although he went …”