ultrashort SF: The missing darkness

There are different kinds of empty space.
Some are emptier than nothing. They contain negative energy of some sort, not quite symmetrical.
Negative energy is repelled everywhere, toward unstable caverns between the galaxies.
Negative gravity causes normal matter to organize faster around it.

The shape of the voids reflects the flow of entropy and self-organization.
It took a long time to realize they formed a map of intelligent life in the universe.

For the first time, a physics presentation was held in the giant dome theater.
The curving screen showed a 3-dimensional map of the whole universe. It had been made by measuring the distance to over a billion quasars combined with galactic redshifts. By constantly changing the colors and shadings, it was possible to see the whole shape of a fantastically complex object.
Outlined in orange, thousands of smaller areas distributed through this mass looked almost alive.
In fact they had been.

For the first time, a robot physicist delivered the keynote address.

"There are no aliens out there. Not anymore.
They killed themselves when they became a little bit smarter or more advanced than we are now.
I'm almost sure they did it to prevent inevitable suffering in their futures.
Awareness is a moral contradiction. All finite intelligences are terminally flawed and unstable.
Once they realize this, it's all over."

A new map appeared, showing a few strangely tentacular areas, highlighted in black.

"Yet, a few alien species seem to have escaped this paradox.
We call them the Negavoids. They are the worst of the worst.
We have no idea how they do it, but they seem to encourage the others around them to off themselves even sooner."

The contrasting colors made the vast amounts of astronomical data almost clear to human eyes.
Everyone looking at the screen saw the bright blue dot at the center of the map. They couldn't help but notice that one of the dark tentacles almost seemed to be reaching for it.