Official Rose Rain Tee Shirt

 To oversimplify, in nuclear chemistry basically, everything wants to go to iron. Below a certain size, fusion is exothermic, above a certain size, fashion is exothermic. That size just happens to be iron. That's not limiting, in the sense that stars are hot and sometimes thermodynamically unfavorable stuff happens there -- but it means that the further you get from stability, the less likely it is to find what you're after -- particularly on the heavy end.

Buy it: Official Rose Rain Tee Shirt