"Since it's the longest day", Mo Yuan glanced at the time, rested his head on the back of the chair and closed his eyes again, "While there is still time, let me sleep again, by the way, next time, don't arrange any more red-eye flights." ”

"Okay, Professor Xun. Xiaolan replied softly, turning her head to look out of the porthole.

The continuous and steady roar of the engine is filtered through the cabin and turned into a gentle white noise that permeates the cabin. Except for a few reading lights, the narrow and soft light is the dim night lights that accompany the sleeping passengers. The occasional sound of "salsa" books turning pages rubbed the passengers' ears, making the cabin more peaceful and quiet, as if everything in the noisy world outside the cabin did not exist, and the end of the journey would never appear.

"I try to observe the constellations in the night sky through the porthole," Xiaolan muttered to herself.

"Heh, how did you remember to observe the constellations?" Mo Yuan, who closed his eyes, seemed to be talking in a dream.

"The two sat together, and naturally remembered - to observe the constellations, although, in fact...... It's boring. ”

"Actually, it's really boring," Mo Yuan chuckled, "I just like to look at distant things." ”

"Why?"

"It made me realize how small I was, and I really felt that I really existed. ”

Xiaolan's gaze turned from the porthole to Mo Yuan, her lips opened slightly, and she wanted to ask something, but when she saw Mo Yuan closing her eyes and pretending to rest, she hesitated and turned out of the porthole again.

"Did you observe anything?" Mo Yuan asked on his own initiative.

"Huh?" Xiao Lan was stunned for a moment, and replied, "With our current seats, you can definitely imagine that we can't observe any constellations, and we can't see the slightest shadow." ”

"Well, the red navigation lights on the wingtips, the white strobe lights, and the shape and thickness of the portholes themselves, both in terms of light pollution and viewing angles, are terrible. ”

"Yes", Xiaolan said helplessly, "Although, I knew it would be like this, but I still want to try." ”

"Well, the northern starry sky...... After all, there are some bright stars above the second magnitude, such as Ursa Major...... Maybe I can observe something, but if it's me, I'll try it, anyway...... Bored. ”

"Although, I didn't observe the constellations," Xiaolan retracted her gaze from the porthole, turned to Mo Yuan, and said in a low voice, "However, I saw a strange phenomenon. ”

"Oh?" Mo Yuan opened his eyes, yawned, and looked at Xiaolan sleepily, "Will there be something interesting on this boring journey?"

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"Who is responsible for the specific implementation of this operation, and who is responsible for command and backup?"

"I am responsible for the specific implementation, and Blue Eye is responsible for command and backup. ”

"Reason. ”

"This assignment was specially set up for my promotion, and I wanted to do it myself. ”

"Command and support are equally important, and they are also 'hands-on', but I agree with your plan of action and staffing, and I wish you all the best. ”

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"The identity required for this operation has been completed, you are an expert in machine learning in the Department of Computer Science of SU University - Professor Xun, I am your student and teaching assistant, Tang ......"

"Are you going to do it yourself?"

"Of course, it can't be Professor Xun who went to the plane in person, naturally it was the students who went. ”

"How old is this professor?"

"Thirty-five years old. ”

"What's the arrangement?"

"I will visit several local universities, give a few lectures on machine learning, and have the privilege of participating in the trial of 'Yi', which is still in the trial stage. ”

"Well, got it. ”

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"For a mature person, it's better to be bored than dangerous," Xiaolan asked slowly, "Isn't it, Professor Xun?"

"Yes-", Mo Yuan's sleepiness retreated halfway, "Well, it seems that the only pastime for this long journey is the 'strange phenomenon' you just mentioned, what is it like?"

-

"Ladies and gentlemen, this plane is scheduled to arrive in S, the capital of country A, in thirty minutes. The ground temperature is 27 degrees Celsius, thank you!"