Evil is the error part of this ongoing trial and error.
It could be
A way to wheedle out what’s
evolutionarily viable
Or how would Life know?
Without evil, err error
Surupy
Boring
A heroless
Story
Day without night
So what then?
What?
Maybe
waywardspirit
In wonder
waywardspirit 
ah, yes; but don’t forget: between trial and error, there is … equanimity; how else would those cogs turn, let alone join?
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Yup! There do seem to be some of that stuff. So abundant it’s often ubiquitous.
: )
Glad you mentioned it. I forget.
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