The wizard in Hogwarts is unscientific

Andy was sure that the fat cat Patronus did feel high in the mural world. The laboratory it saw in the mural world was exactly the same as the laboratory outside.

But there is no height in the two-dimensional world, so it can only be a false height.

But looking at the real world from the perspective of the mural world, the feeling is completely different.

From the perspective of the fat cat patron saint, the light ball of the fluorescent spell is as bright as the sun.

But the difference is that there are two light balls in the secret room, and from the perspective of the Fat Cat Patron Saint, the distance between them and him is the same.

That feeling... is just like people in the real world looking up at the night sky. You can only tell the size of each star, but not its distance from you.

"Is this a two-dimensional world?"

Andy thought: "It looks the same as the three-dimensional world, but it actually lacks a dimension called 'high'. But if you are in it, everything seems real."

"Then what does the four-dimensional world look like?"

Andy guessed.

"Perhaps when we enter the four-dimensional space, we will find that it is no different from the three-dimensional world. It's just that compared to the four-dimensional world, there is something false in the three-dimensional world."

"It's just that when we are in the three-dimensional world, we cannot perceive that falseness."

Andy looked at the murals in the secret room and had the urge to find out.

only……

Andy thought for a moment, but still didn't take a step.

"It would be nice if we weren't in Azkaban." Andy sighed helplessly.

"Big cat, let's go again."

Andy turned to look at a certain tool cat and ordered: "Go in this time and find a chance to build a real height and see if you can escape from the world of murals."

The fat cat patronus shook his tail.

It uses Andy's psychic power to construct its soul. Although it looks silly and cute, in fact it can fully understand what Andy conveys.

Pulling up a silvery white light, the fat cat Patron Saint once again flew into the mural on the ceiling.

But unlike last time, this time, the Fat Cat Patron Saint already knew what he should do.

But after trying for a long time, it still didn't know how to build a real "high". Because in its eyes, there is no difference between the world it sees and the real world.

If we cannot build ‘high’, we will not be able to achieve true dimensionality enhancement in the two-dimensional world.

Andy waved his wand, dispelling the effect of the Disillusionment Curse and also dispelling the silencing spell on the ceiling mural.

The fat cat patronus immediately wagged his tail at Andy.

Andy waved his wand and drew three golden magical rays of length, width and height in the air.

The fat cat patronus tilted his head.

In its eyes, the three golden lines drawn by Andy were on the same plane - those golden lines looked very long, but seemed to be very far away from it.

It's like looking at the stars in the sky.

Obviously those stars are near or far away from us, but with the naked eye, those stars seem to be on the same plane, and you can't tell their distance at all.

This is a deception of sight and perception.

The patron saint of fat cats is being deceived right now.

"Don't look with your eyes, feel with your heart." Andy said.

The fat cat patronus looked down, stretched out his paw to touch his heart, and then made a confused expression to Andy - I don't have a 'heart' organ?

"I'm talking about the soul, you idiot!" Andy was almost angered to death by this stupid cat.

The patron saint of fat cats gave Andy an 'understood' look, then closed his eyes and understood it carefully.

Five minutes have passed...

Ten minutes have passed...

fifteen minutes……

"Okay, come back!" Andy said helplessly.

The fat cat patronus opened his eyes and glanced at Andy, tried his best to make an aggrieved expression, and then disappeared out of thin air.

Andy summoned the stupid cat again.

The fat cat patron saint quickly passed on the 'consciousness' just now to Andy. Andy closed his eyes and carefully experienced the fat cat patron saint's perspective.

That feeling is almost the same as personal experience.

When the fat cat patron saint enters the ceiling mural, what he sees is a three-dimensional laboratory.

Everything there is real!

But looking at the real world from the perspective of the mural world... it's big, clear, but also very far away.

From the perspective of the Fat Cat Patron Saint, Andy, the two light groups of the fluorescent spell, and the three golden lines of length, width and height drawn by Andy are all on the same plane.

It's like... looking at the world in a painting!

What the paintings look like to us is what the ‘people’ in the paintings look like to us.

Andy is a little messy.

From this perspective, is the world we are in now three-dimensional? Or two-dimensional?

Is the world we perceive real?

Andy looked around. Everything around him was three-dimensional. Looking at those murals again, everything in the paintings is on one plane.

But the fat cat patron saint has entered the world of murals!

After entering the world of murals, it perceived three dimensions in the paintings. On the contrary, Andy's world was on a flat surface.

Andy cleared his mind to calm down.

"wrong!"

Andy reacted suddenly.

When the fat cat Patronus was flying around in the mural world, it seemed to be moving in a three-dimensional space, but when it flew into the laboratory, its body became smaller.

The fat cat patronus may not be able to sense it himself.

But when Andy gets the perspective of the fat cat patron saint, he can discover this - because Andy also has the perspective of the real world.

It really deceives vision and perception!

"Big Cat, let's go again! This time like this..."

As he spoke, Andy transmitted his thoughts to the fat cat patron saint through telepathy.

The fat cat patron saint shook his tail again and flew towards the ceiling mural without any complaints.

Andy stared at the ceiling mural.

After the fat cat patron saint flew twice inside, a water ripple appeared on the mural again, and the fat cat patron saint flew out directly from inside.

"Successful!" Andy said excitedly.

The patron saint of fat cats also felt great joy.

Unlike Andy, who was simply happy, a white light lit up the body of the fat cat patron saint, and it seemed to be a little fatter.

Andy's [Psychic] talent has been increased to six points. For the fat cat patron saint, its upper limit has been raised again.

Andy: "..."

Suddenly, I don’t seem so happy anymore!

Andy looked at the fat cat in front of him angrily... Why should I study hard and practice magic to become stronger? And this stupid cat in front of me can become strong by being happy?

Is this fair? Is this reasonable?

Fat Cat Patron Saint: Just be happy!