Here, they use a fusion reaction (which probably won't be net energy positive by itself) to release a flurry of neutrons on demand to induce fission in uranium. As far as I can tell, this means that you don't have to keep your fuel at close-to-critical conditions to sustain useful amounts of fission, you can induce it on demand using the fusion reaction. Full disclosure, I'm a materials scientist, not a nuclear engineer.
Here, they use a fusion reaction (which probably won't be net energy positive by itself) to release a flurry of neutrons on demand to induce fission in uranium. As far as I can tell, this means that you don't have to keep your fuel at close-to-critical conditions to sustain useful amounts of fission, you can induce it on demand using the fusion reaction. Full disclosure, I'm a materials scientist, not a nuclear engineer.
Well, I'm an accounting software guy, so you're still probably several degrees more savvy on this shit than I am.