175.

Shen Bing automatically ignored the exaggerated backtracking scale of the next 10,000 years, and said with a slight calculation. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

"19 years, 2 months and 3 days, there are two backtracking schemes. One is to split it into 10 years + 9 years + 2 months + 3 days for backtracking, with a total of 7,730 causal coins. ”

"The other is to go back 20 years and then slowly wait until May 12, 1987 through the adaptation period."

"A one-time return to 20 years ago, that is, to July 14, 1986, and May 12, 1987, is 302 days. According to the consumption of 10 Cause and Effect Coins per day, you need 3020 Cause and Effect Coins. Together with the 5,000 causal coins that go back 20 years at once, there are a total of 8,020 causal coins. ”

"So according to the first scheme backtracking, it will be more economical to save the causal coin, the problem is that our current causal coin does not seem to be enough."

Shen Bing pointed to the 6,732 causal coins displayed on the light screen and said.

Due to the preview of the foresight, Ye Yu consumed a lot of cause and effect coins, and at this time there were only 6,732 cause and effect coins left, even if the 7,730 cause and effect coins required according to the first plan, it was obviously not enough.

But Ye Yu didn't look worried about this, he just stretched out his hand and swiped on the light screen again, turned the page to the bottom, and said.

"In the causal system, in addition to the two items of back-time and forward-looking preview, there is also a function of back-time."

Shen Bing looked at the part pointed out by Ye Yu, and sure enough, it was written on the light screen:

"A single person goes back 1 month and consumes 50 Cause and Effect Coins"

"A single person goes back 1 year and consumes 250 causal coins."

"A single person goes back 10 years and consumes 1,500 causal coins."

……

Ye Yu explained: "Retrospective time is different from retrospective preview, which only allows us to see the future, while retrospective time allows us to travel to the future, which corresponds to retrospective time that allows us to go back to the past. ”

"Therefore, at the same time, the amount of causal coins consumed by the retrospective time is 5 times that of the retrospective preview."

But in the same way, if we compare time to a long river, going back to time is going upstream, and more causal energy will be consumed. If the forward time is downstream, less causal energy will be consumed. ”

"So you can see that at the same time, the causal coins consumed by the retrospective time are half of the retrospective time."

"So, we have a third backtrack."

"That is, to go back 20 years at once, and on July 14, 1986, 5,000 cause and effect coins were consumed."

"10 months at a time, by May 14, 1987, 500 causal coins were consumed."

"Go back another 3 days, and on May 11, 1987, 30 Cause and Effect Coins were consumed."

"That's a total of 5,530 Cause and Effect Coins."

"In this way, our remaining 6,732 causal coins are enough to support the backtracking of this time span." Ye Yu said.

After listening to this, Shen Bing couldn't help but want to say that the old driver is really very experienced.

"But this is the karma coins needed for solo backtracking, plus me, the consumption of karma coins will have to double to 11,060 karma coins, or do you still need to use karma stones?"

Faced with Shen Bing's question, Ye Yu replied as a matter of course: "Of course." In fact, based on the cost-effective calculation, as long as you consume more than 1,500 Karma Coins, it will be more cost-effective to use Cause and Effect Stones. What's more, it's still such a backtracking of such a large time span? Using a single Cause and Effect Stone to offset 5,530 Cause and Effect Coins is very cost-effective. ”

"Okay, that's enough, so let's go back now?" Shen Bing asked.

"Well, the world line B has also been reached, and it doesn't make much sense to continue to stay in this time period, so let's start backtracking!"

After Ye Yu finished speaking, he raised his left hand and shouted loudly.

"Backtrack!"

In an instant, Ye Yu's left hand once again turned into that huge time hourglass.

"Xiao Zuo, follow the third plan to backtrack."

A huge mouth immediately appeared on the base of the hourglass, and he opened his mouth and said, "Understood." ”

"This machine is now to the space-time management system, carrying 1 person to backtrack, backtracking method, first one-time backtracking 20 years, one-time backtracking 10 months, the last sexual backtracking 3 days."

After Xiao Zuo's voice fell, a pleasant female voice sounded immediately.

"The application is approved, the identity of the tracer is approved, and the target tracer carries 1 person for time backtracking, and the consumption of causal coins is doubled, and 11,060 causal coins need to be consumed."

"An application for the use of causal stone was detected, and it was determined that the number of tracers exceeded 1, which met the conditions for the use of causal stone. After the causal stone is offset, according to the backtracking plan provided by the target tracer, the backtracking will be carried out for 7004 days, and 5530 causal coins will be consumed. ”

"After the deduction is completed, the time backtracking begins."

When the words fell, the number of causal coins displayed on the light screen in front of Ye Yu decreased from 6,732 to 1,202.

Immediately afterwards, the hourglass on Ye Yu's left hand immediately turned upside down.

The world is once again black and white.

Because the scale of this backtracking is very long, reaching a huge size of 20 years, and there are also traces of the previous traces in between.

Therefore, Shen Bing felt that this time the journey of backtracking was much longer than before, and all the scenery around him was condensed into lines in the sharp time regression, which made people completely unable to see clearly, and when they looked closely, they would have a feeling of being dizzy by the soul.

Shen Bing had no choice but to close his eyes in the end, and it wasn't until he had a down-to-earth feeling on his feet that Shen Bing felt that this time regression was over.

When she opened her eyes, she found that the surroundings were still Qingzang Highway, and the scenery had not changed much, which made Shen Bing ask with some surprise: "We go back to May 11, 1987?" ”

Ye Yu replied affirmatively: "Well, that's right. ”

"This is Qingzang Highway, the scenery will naturally not change much, wait for me to take you to a crowded place, you can feel it intuitively."

After Ye Yu finished speaking, he was about to grab Shen Bing and fly into the air, but Shen Bing waved his hand again and again to refuse.

"Can you not use the flying one? You can find a car to sit in! ”

"It's 1987, and it's 1987, so many cars are there to give you a ride, and besides, it's too much time to waste, and we don't have that much time to waste on this kind of thing."

"Okay, okay, I don't need to fly at supersonic speed this time, I'll fly a little slower."

Hearing Ye Yu say this, Shen Bing suspiciously asked Ye Yu to catch her, and then she was taken into the air by Ye Yu.

The two of them galloped towards the east in the air.

This time, Ye Yu did not use the supersonic cruising speed to fly.

But Shen Bing's very miserable cry of pain was still heard in the air......

(Today's first chapter, ask for collections, ask for recommendation votes!)

I finally updated it on time, and I look forward to maintaining it in the future. ）