A useful way to think about this: the energy transition is also a metals demand story that many equity investors underweight. What is happening: Electrification and renewables require copper, lithium, nickel and rare earths at scale. The supply chains for these metals are geographically concentrated and slow to expand. Why it matters: That creates a structural tension where green policy ambitions can collide with physical supply constraints for years. In practice: A single large-scale wind farm can require hundreds of tonnes of copper. Multiply that by global climate targets and the tonnage math gets serious. Watch for: The mistake is treating the energy transition as a purely software and intellectual-property story when the bottleneck is often in the ground. Useful lens: Before reacting, ask what mechanism would still matter here if the headline disappeared tomorrow. The point is not to memorize the label. The point is to know what variable is actually doing the work.