Kate: What do you mean by sparse?

There is a huge amount of data. Two things need to happen ... (1) more time to analyze it, and (2) you need to read scientific journals rather than the popular press.

Crank: You are misreading the record a bit. The so-called "metals" form and increase in multiple generations of stars going nova and supernova. The organics found were likely generated by active chemistry inside dust grains and comets.

DA Morgan