If you make the error of regarding evil as substantial, you will start to find arguments plausible such as "Good mixed with evil is actually better than just good, because there's more there" or "because it creates more variety".

Mixing evil into good doesn't make more stuff, it ruins the stuff that was there.

The idea of writer's block, in its ordinary sense,
Exists largely because of the notion that writing should flow.

But if you accept that writing is hard work,
And that's what it feels like while you're writing,
Then everything is just as it should be.
Your labor isn't a sign of defeat.
It's a sign of engagement.
The difference is all in your mind, but what a difference.

The difficulty of writing isn't a sign of failure.
It's simply the nature of the work itself.

For the writer, the word "flow" is a trap.
So is any word that suggests that writing is a spontaneous emission.
Writing doesn't flow unless you're plagiarizing or collecting cliches or enlisting volunteer sentences.

You'll experience certain kinds of suddenness as you work:
The illusion that time is passing quickly,
An episode of unusual mental clarity,
An almost unnoticed transition from one mood to another.

The piece you're working on may take a jump forward,
And you notice the jump instead of the hours and days of thinking that enabled it.
Everything may flow when you're setting thoughts down on paper.
But that's jotting, not writing.

"Flow" means effusion, a spontaneous outpouring of sentence.
But what it really, secretly means is easy writing.

The more you know about making sentences, the easier it is to fix them.
To get out of trouble, to find the really good sentences—
The better sentences—hiding beneath the skin of your thinking.
What matters isn't how fluidly the sentences are emitted.
Only how good they are.

It's easy to believe in "flow" if you can't feel the difference between a dead sentence and a living one.
Or see the ambiguities you're accidentally creating.

In other words, "flow" is often a synonym of ignorance and laziness.
It's a sign of haste, the urge to be done.