In Ottawa this week, Canada placed its economic ambitions before the world's largest investment funds, offering a catalogue of 167 projects — from pipelines to artificial intelligence — as evidence that the country is ready to grow. Led by Mark Carney, the summit is less a transaction than a declaration: that Canada intends to compete for global capital on its own terms. Yet beneath the breadth of the pitch lies a quieter question about dependency, as much of the foreign investment currently flowing into Canada traces its origins southward, to the United States. Whether the world's great pools