"Ah ah... itās such a mess..." Xu Ying rubbed her hair irritably. "So many things have happened in these fifty years. I just jumped forward fifty years, but it feels like everything has changed..."
Fifty years ago, there were no survivors yet; fifty years ago, the human base in the underground world wasnāt this passive; fifty years ago, it was her brother, Xu Xin, who handled most of the affairs.
"What if... I jump back again..." Xu Ying suddenly had a bold idea, but she immediately dismissed it herself, shaking her head vigorously. "No, no, no, itās too risky."
"What are you thinking? Jump back to where?" Li Wenxi was curious about Xu Yingās sudden action. "Did you think of a solution?"
"Ah..." Xu Ying gave an embarrassed smile. "I thought of a solution, but the price might be the destruction of the world."
Her words left Li Wenxi and Wei Shishi momentarily stunned.
"...Now is not the time for jokes." Wei Shishi rolled her eyes slightly. "I still have things to do over here. Iāll be leaving now. If thereās any news from Grandpaās side, Iāll inform you."
"Hey, are you just leaving like that?"
Wei Shishi didnāt offer much of an explanation, taking her people onto an armored vehicle and leaving together.
"Whatās going on..." Xu Ying sat down heavily on a large rock beside her, propping herself with her hands and looking up at the dome. "What should we do now? We canāt go up there..."
"Canāt you teleport?" Li Wenxi sat down beside her, also looking up at the dome. "Canāt you just teleport up there directly? We donāt have to mine; we just want to take a look after all."
"Of course not." Xu Ying sighed. "Not to mention if thereās a place to land up there, just talking about my spatial ability, itās not that easy to use. I need a very precise location. Simply put, it needs a reference point. Otherwise, not to mention the larger effects, just Earthās rotation and revolution mean spatial positions are changing rapidly."
"...What do you mean by a reference point?"
"It means my spatial ability can only take me to places Iāve been to and left my mark on." Xu Ying looked toward the villa on the hill not far away. "Like that villa. Spatial abilities arenāt just for casual use. Otherwise, one small mistake could lead to a chaotic position."
Li Wenxi nodded somewhat bewilderedly. "I think I understand. Then... if you made a mark here, and if you teleported to another place, couldnāt you just instantly teleport back?"
"Itās not that easy."
Xu Ying suddenly looked at Li Wenxi with a complicated expression, her eyes flashed with a hint of sadness, then she shook her head and said:
"If you were to teleport directly into space, thereās almost no chance of survival. The air pressure would drop to zero in an instant, internal organs would explode, and the temperature would plummet by a hundred or two hundred degrees... In such an instance without any protective measures, one might immediately lose consciousness and then become space debris floating in the universe."
"Ah... thatās so terrifying..." Li Wenxi imagined that scenario, swallowing hard.
Xu Ying glanced at Li Wenxi, her eyes drooping.
In that timeline, the real Li Wenxi, her sister-in-law, perhaps... died like that.
"Whatās wrong?" Li Wenxi noticed Xu Yingās somber mood and asked softly.
"Ah, itās nothing, nothing." Xu Yingās dejection lasted only a moment. She immediately looked up and laughed. "That was just an extreme example. After all, itās only space travel, not time travel. As long as you move quickly and have the ground as a reference, itās not like youāll be sent directly into outer space."
"Oh, I see." Li Wenxi pondered. "What you mentioned, that seems more important in time travel, right?"
"Thatās right." Xu Ying nodded. "Time travel requires more attention to the landing point. With such a significant time span, the original position would have completely changed. Without determining the space-time coordinates, you would disappear into the chaotic space and time, becoming space debris."
As she spoke, her tone became somewhat somber again.
Her sister-in-law... was lost because of this...
"Then... why canāt you teleport up there? Isnāt it just a spatial shift?" Li Wenxi pointed upwards.
"Because, apart from being teleported into space, there are other failure risks!" Xu Ying sat on the large rock, kicking the pebble beneath her feet. "Extremely terrifying!"
Li Wenxiās curiosity was piqued. "How terrifying?"
"Teleportation always requires some time. Without exact coordinates, my position wouldnāt be too accurate, and a deviation is very likely." Xu Ying pointed upward. "Thereās a three-thousand-meter distance above me, and my non-coordinate teleportation error is around one in a thousand, meaning there might be a three-meter error unless thereās a major mistake."
"A three-meter error..." Li Wenxiās eyes widened slightly. "I get it..."
"Right? Imagine, if itās three meters downward, Iād fall directly and die. Splat!" Xu Ying made a motion of her hands exploding on the ground. "I canāt teleport continuously; Iād simply fall to my death!"
"Wow... that is really dangerous..."
"And if itās three meters upward? Sister-in-law, think, whatās three meters upward?"