Rachel from accounts is settling up. In a speech at Siemens Healthineers near Oxford, the Chancellor signalled her commitment to development by backing a third runway at Heathrow, placing her on a collision course with net-zeroers, Nimbys and the other forces of decline. The interests ranged against her are mighty and loud, but if she delivers she will draw crucial battle lines for the next general election: a Labour government that gets things done versus the party of inertia and stagnation.