A Different Doraemon World

The scene before their eyes became increasingly blurred, and the surroundings of the laboratory slowly faded away. When they regained their senses, everyone found themselves standing in a vast plaza. This plaza was immensely large, so large that the entire area couldn't be seen with the naked eye. The ground was made of a strange, highly polished glass-like material that didn't feel slippery despite its smoothness. Above them, the sky was tinged with a reddish hue, filled with floating green cubes that resembled blocks of data, giving the scene a surreal and unreal atmosphere.

Shizuka knelt down, gripping her trident tightly. Nobita, worried, ran over to help her up. "Shizuka, are you okay?"

Shizuka shook her head weakly and replied, "I'm fine, just overused my mana a bit. I just need to rest for a moment!"

Meanwhile, Doraemon and Kelly's group were captivated by the place. They looked around in amazement until Doraemon finally spoke, "This must be the alternate dimension that the Atlanteans accidentally discovered, right?"

"Yeah…" Shizuka nodded but didn't elaborate further. She was still visibly drained and lacked the energy to explain.

Seeing this, Doraemon took out a small bottle of medicine and handed it to Shizuka. "Take this! It'll help restore some of your stamina."

Shizuka glanced at the bottle in Doraemon's hand for a moment before reaching out for it. However, her trembling hand caused her to drop it. Nobita quickly bent down, picked it up, poured out a pill, and held it out to her. "Here, take it quickly!" Shizuka smiled gratefully at Nobita, took the pill, and swallowed it. Shortly afterward, her complexion improved noticeably, and Nobita sighed in relief.

"All right, let's head to my place first. This isn't the place to talk!" Shizuka said as she stood up. She could sense everyone's curiosity, but as she had said, this wasn't the right place for discussion. Turning to Doraemon, she added, "Use your Anywhere Door. Since the sun hasn't reached this dimension, your gadget should work fine. Everyone can relax a little bit here."

Doraemon nodded, took out the Anywhere Door, and handed it to Shizuka. She quickly set the coordinates and opened the door. On the other side of the door was a relatively spacious room, neatly arranged but otherwise ordinary, much like a typical room on Earth. Shizuka turned back and said, "This is my living room!" Then she walked through the door, the group exchanged glances before following her.

They settled onto a sofa while Shizuka instructed a group of robotic assistants to bring them water. After propping her trident against a nearby wall, she sat down opposite the group and smiled.

"Alright, if you have any questions, feel free to ask."

"What exactly is this dimension? Is it still on Earth? Or is it another planet? And how did you manage to teleport us here? Even Doraemon's Anywhere Door and Time Belt weren't working earlier," Kelly asked without hesitation.

"I'm more curious about that trident of yours," Connie said, eyeing the weapon resting against the wall.

Just then, the robots returned with drinks for everyone. Shizuka took a sip before calmly beginning her explanation. "Let's tackle each question one at a time. First, about this dimension, this is a place that we—Atlanteans—accidentally discovered long ago and have used as a refuge. Initially, the environment here was terrible, but after countless years, we managed to transform it into something more livable. As for its location... let's see. You could say it's still on Earth. More precisely, we haven't changed locations. That's why we were able to come here even though the Anywhere Door didn't work. We didn't teleport to another place; we merely shifted to another spatial layer. The spot where we appeared here corresponds exactly to the spot we left from!"

"So, a parallel dimension that exists alongside the normal one?" Rim speculated, rubbing her chin.

Karen leaned in, intrigued. "Can you explain that in more detail?"

"Let me see… Hmm… Are you familiar with Planck's constant?" Shizuka asked the group.

Rim and Karen thought for a moment before replying, "It's a fundamental constant used to describe elementary particles, often appearing in quantum physics equations."

Shizuka nodded. "The specific value is 6.626 069 057 (29) × 10^-34 J.s. According to the basic principles of quantum mechanics, the world doesn't exist as a continuous whole but rather, it exists in discrete intervals defined by this value. Everything in the universe—matter, energy, and mass—exists as multiples of this value.

If we treat this constant as an integer value of 1, then all discrete energy values in the known world are very large integers. To put it simply, you can think of Planck's constant as the basic building block, like a brick, and the world you know is built from countless such bricks."

"Wait… Does that mean this place is underground?" Nobita asked suddenly. Then immediately blushed in embarrassment. Although Nobita wasn't the brightest, he quickly realized how ridiculous that idea sounded. Unfortunately, he had already said it aloud, a result of his tendency to try and impress Shizuka.

Shizuka covered her mouth and laughed. "No need to be embarrassed, Nobita. This is indeed quite complex. But no, this place isn't underground; it's built from a different kind of 'brick.'" She paused, giving everyone a moment to digest her words before continuing. "Basic quantum mechanics has given us a very clear hint: space isn't as fully occupied as we tend to imagine. For example, although we might think the ground is packed tight with no empty space left, in reality, it's still quite empty. In terms of Planck-scale measurements, there are countless gaps in between. It's similar to how there are infinite values between 1 and 2."

Nobita was utterly confused, his head spinning with questions, as though he was lost in a dense fog.

Kelly, who had been pondering for a while, suddenly clapped her hands. "I get it! The Planck constant in Atlantis starts from a different baseline, doesn't it? If we treat the Planck constant of our world as 1, then the starting point here might be around 1.16. The 'different kind of brick' you mentioned refers to that difference, right? A mix of integers and decimals!"

Shizuka smiled and nodded. "That's the correct answer!"