It has been assumed that reprocessing spent nuclear fuel is expensive, more expensive than mining uranium at a yellowcake price up to perhaps $250/lb. But what SpaceX has shown private operators can replace some government monopolies for 10% of the latter’s operating costs. The solution may be as simple as putting the spent nuclear fuel through a molten salt reactor, producing power while separating out the actinides. We won’t know until we start and the important thing is to start early in 2025.