But it also highlights an interesting contrast in how we think about closed-loop systems.
A fast breeder reactor multiplies fuel through nuclear transformation.
Systems like CRT take a different path—they circulate fuel instead of consuming it, reusing the same carbon atoms in a continuous loop.
Both approaches point in the same direction:
👉 reducing dependence on continuous resource extraction
One expands the fuel base.
The other removes the need for new fuel altogether.
That shift—from extraction to internalised systems—is where the future of energy architecture is heading.

A simple comparison between CRT and FBR.


