More Thorium Artwork from Suzanne Hobbs

I'm not sure you understood the picture. The fission of U-233 generates two or more neutrons. One of those causes the fission of another U-233, as depicted in the picture by the neutron heading for the U-233, another causes the transformation of Th-232 into U-233, regenerating the U-233 that was consumed to create the two neutrons in the first place. I think the picture depicts it just right.