Europe’s divisions have been as soon as easy. Fiscal coverage and sunshine? That was a north-south carve-up: gray, abstemious north; glowing, spendthrift south. Migration and wealth? Newcomers have been principally tolerated within the wealthy west and despised within the poor east. Solely the wine-beer-vodka spectrum, which produced a twice-diagonal break up, was extra advanced. When disaster struck, these acquainted dividing traces helped. Predictable splits are simpler to handle.