system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Please explain "negative entropy" (negentropy)

I just do not understand negative entropy.  If I were a creationist (I am not) I'd think scientific, reality-based people were just making up something to explain how life arises and fights entropy (fights disorder) to organize itself and continue to live. 

Life eats entropy?  Negative entropy?  Something like that?  It sounds like a bullshit explanation that nobody knows how to explain. I really hate that.
gpt
There is no law requiring a local system to have monotonically increasing entropy. What keeps all of the oxygen molecules in a well mixed room from moving spontaneously to one side of the room? Nothing does-- it can happen, but it would be tremendously unlikely. Through random paths each molecule takes, we're overwhelmingly more likely to see an unmixed room transition to a mixed room. What if you put an oxygen concentrator in the room? Now you can create an "ordered" state at will. Have you eaten entropy out of the universe by doing so? No, since it takes energy to force that state (at least as much, and actually more than the energy that state holds). In essence, life can arise randomly and continue a process of creating more energetically complex states without taking entropy out of the universal system.