after you asked i through about it, and i looked simultaneously at 4 of the nukes, then i saw a neutron appear and realized how it works, each frame polo has some chance to spontaneously neutron, which plut hates when it happens and explodes, which also explodes the DEUT into hot angry neutrons
i just counted in my head till about half disappeared
how on earth did you get that
a good illustration of the half-life