Last week's column on the views of New York University's Nouriel Roubini (February 20) evoked sharply contrasting responses: optimists argued he was ludicrously pessimistic; pessimists insisted he was ridiculously optimistic. I am closer to the optimists: the analysis suggested a highly plausible worst case scenario, not the single most likely outcome.

Those who believe even Prof Roubini's scenario too optimistic ignore an inconvenient truth: the financial system is a subsidiary of the state. A creditworthy government can and will mount a rescue. That is both the advantage - and the drawback - of contemporary financial capitalism.