Namely, the dark matter conjecture.

For example, humans were able to photograph an object from different angles using a camera. They were able to capture a three dimensional object into an arbitrary two dimensional planar photograph.

Similarly, this black substance could be transmuted into any arbitrary substance from the three dimensional world.

Hence, it was believed that this could be a higher dimensional substance—ergo, it was named dark matter.

Supposing dark matter was a fourth dimensional substance, then defining its existence would require four axes.

What would the fourth axis be? It was still currently unknown, but the most convincing suggestion was that it was something closely related to the mind.

Because dark matter's form would change according to the creator's will.

Despite having no mass, the dark matter on my hand produced a sensation.

Probably, Ds used their minds to sense dark matter.

Hence, just by adding force of willpower to the body's movements, a throw towards a location 50m away was possible!

Iris exclaimed in surprise but I ignored her. My gaze followed the black sphere closely.

I did not have the ability to generate dark matter suddenly at the far distance of 50m. Hence, I threw it then judged the distance visually. This was the best method I could currently think of.

...Slight deviation to the right.

When the sphere arrived above the marker, I transmuted the dark matter.

Voicing silently in my mind, I imposed limits on the possibilities of the dark matter that could turn into anything.

The image formed in my mind was a shield of iron. Acquiring mass, the dark matter fell almost vertically with a clang, planted on the ground.

If it were still dark matter, it would not make any sound, vanishing as soon as it touched mass. Hence, the sound of impact was evidence of transmutation.

Although it had fallen to the right of the marker, standing upright there was exactly the shield I had imagined.