How many species do you think were killed off

How many species do you think were deemed unworthy of the Mantle of the Precursors, and were killed off by them? This would be interesting to know.

there’s billions of galaxies that the Precursors went to… soooo, a lot.

Makes me want to read Silentium to learn more about the Precursors. When you think about it, there’s so much we don’t know…

I like to think they wouldn’t test a lot of species, but a very select amount.

How many were judged unfit? At least 1. How many species where killed because of that? Billions. During the Forerunner-Flood war the flood didn’t just go after forerunners. They went after everything.