“But space isn’t a measure of position, nor is time. These two things only make sense to humans in four dimensions. In a higher dimension, time and space are just horizontal and vertical coordinates on a piece of white paper, like this.” Polly took a piece of chalk out of his pocket and made a dot on the railing in front of them. “An electron moves freely through time and space. The left is the past and the right is the future. It crossed time and walked forward a second.”

Then his pen drew a forward slash to the lower right. “After crossing time, it is here.”

“After that, it crossed time again and walked back a second, stopping here.” The chalk drew a line to the bottom left.

Now there were three dots and two lines on the railing. They formed an acute angle with the opening to the left and the two points on the left was a vertical line. Polly drew this vertical line. “Our time is in this second. What do we see at this time?”

An Zhe thought about it for a long time.

In the end, he said, “Two electrons.”

“Yes, we see two identical electrons. They are essentially one but they appear in two places at the same time.” Polly drew countless star-like electrons next to them. “An inaccurate estimate is that our planet has 10 to the power of 51 identical electrons that make up what we can see. How can we prove that this isn’t the same electron that is repeatedly oscillating on the time axis billions of times?”

“Similarly, how can we prove that the existence of the entire universe we see isn’t the result of one or more basic particles vibrating in space and time?”

An Zhe frowned. He couldn’t prove it.

He struggled to digest this sentence with his limited cognition.

“So you and I are the same electron?”

Polly smiled softly and placed his arm around An Zhe’s thin shoulder, like an elder holding an innocent young child.

“This is just one of the countless conjectures that humans made about the nature of the world. It isn’t the truth, nor is it inconsistent with the truth. It is difficult for us to verify. I just gave this example to show that our body, mind and will are smaller than an electron when compared to the entire world.”

An Zhe gazed into the distance. He was just a simple mushroom without the brain of a scientist. He didn’t have rich knowledge or the far-sightedness to think beyond the emotions. He couldn’t understand such a system and only knew the world was really in front of him. He gently stated, “But we are all real.”

The moment he spoke, the expression on his face suddenly blanked out for a second. His brow furrowed and his lungs hurt.