Our sun is a second (or third) generation star. The previous supernova which created all of the elements and isotope balances that are found on earth, are the products of a certain starting mass, age, temperature, and other variables that existed billions of years ago. These influenced that prior Nova, and determined precisely what we see today as unique isotope ratios in our (local) system among trillions of other unique systems. All of them are different locally.
However, physical nuclear reactions are supposed to be universal, not local. For a universal reaction to reproduce the exact same ratio as found in a 10 billion year old nova/supernova, one of trillions ... well, the odds of that happening are ... shall we say - astronomical? -----Original Message----- From: Harry Veeder Mattia Rizzi wrote: >A nuclear reaction should produce non-natural distributions. but how did the natural distributions arise in the first place? Harry
