system
Given the following post, respond as if you're commenting on Reddit:
human
[Prometheus] When the engineer sacrifices himself and his body falls into the raging waterfall/river, wouldn't the molecules become separated and stop reacting?

I get that the black goo started changing his body but, dissolving into a raging waterfall and river would likely scatter the bits amongst millions of gallons of fairly pure water.  

If they wanted to start life they should have done the ritual in a cesspool swamp or bog where the materials would sit and fester and grow into fungus or mold or whatever.
gpt
His DNA carried the seeds of future development, but the initial organisms created from his body were single cells that reproduced through mitotic division.  All they needed was nutrients and room to grow.

A cesspool would have had less dispersal and more possibility of failure from a localized catastrophe.