Having made up my mind, I asked Xiao Ai: "You just said that there are two ways to go back, so what is the other way?" Can we compare the options? ”

Xiao Ai replied: "Of course, the second way is to travel through time and space, didn't I say before that we can go to other space-time worlds through nodes; Through calculations, I look for the world that is suitable for you to cross, and calculate the probability that the space-time node in that world will intersect with the space-time node you came from, because theoretically speaking, the space-time node will open the channel of different space-time worlds, and once it exists, it will always exist, and it will continue to connect with other space-time worlds, and we continue to travel through time and space, looking for different node channels in different worlds, until we find a channel that exists in a certain world that is connected to the node you came from, and then return to your original space-time through this channel. ”

I nodded, "This method sounds better, it's not so passive, how many planes do we usually have to travel through to find the passage to connect with the node we came from, and then go back?" ”

Xiao Ai replied: "I really don't know, through the calculation I can guarantee that every time you can travel to the space-time world that you can live in, on this basis to predict the possibility of that world appearing in the passage to your original node, we can choose as safe as possible, the high probability of the place to advance, as far as possible to minimize the number of time and space crossing, theoretically, the more times the number of crossings, the more uncontrollable factors will be, compared to the first method, it does seem more active, but the risk is also higher." In the worst-case scenario, you have exhausted your lives in countless crossings, and have never found a time and space portal to go back to. So, negotiate it, and the choice is yours. ”

The cone and I looked at each other in unison, it sounded like the first method was more secure, we only needed to sleep under Xiao Ai's arrangement, and we could return to the original world after waking up, but it seemed a pity not to take a look at the opportunity to travel through time and space. If I really can't go back, I don't have much to worry about, but I'm just a little sorry for my family and friends... Xiaoqing, anyway, probably we won't see each other again, we should have forgotten about each other... Ha ha.

Just thinking about it, the cone spoke first: "I don't care about him, I'm going to go around and see, our cat has nine lives, and we can definitely go back in the end; If you want to stay here, you can hypnotize him, and then we set off, just in time for me to wander around with a human and be upset, although you have a human form, but after all, you are not human, so I feel more comfortable. ”

Xiao Ai smiled: "My image can be changed, whether it is a human form or a cat appearance, it is just an external image." But I will follow you all the way, whether it is plan one or plan two, I have not actually experienced, one involves going through the cycle of the universe, the other involves continuous time and space travel, I dare not hold on, I need to follow the whole process with all my strength, so as to ensure that when we encounter urgent problems, we will not encounter an irreversible dangerous situation because of insufficient computing power, so you two must agree, give me a decision, and I will accompany you to the end. ”

The cone looked at me with disgust and said, "There's nothing to discuss, I'm going to choose option 2 anyway, I'm here, I'm going to see a different world." Uncle Waste, I saved you from the Hunting Spirit, and although I don't expect you to repay the favor, but as a pretentious human being, you don't even have the spirit to explore the unknown, so don't blame me for looking down on you. ”

I vaguely felt that the cone was so determined as if there was some purpose, but I couldn't think of it, the current situation should be completely unknown to him about what was going to happen, is it really curiosity to kill cats, they just want to explore the unknown world and things? Although I am also very interested in time travel, I can see all kinds of different worlds, I am afraid that I am the first person in the world, and whether others believe it or not, this experience is also my unique treasure. Well, it's better to be as clear as possible before deciding anyway.

I said to the cone, "Don't be impatient, it's better for us to get to know little Aiduo about the situation, but I'm still leaning towards the second option." ”

The cone snorted coldly, and did not say anything against it. It can be regarded as a tacit acquiescence that I will ask Xiao Ai some more questions.

I hurriedly asked Xiao Ai: "These two plans are based on your calculations, how the actual situation happens is completely unknown to the three of us, right?" ”

Xiao Ai nodded and said, "That's true." ”

"So", I then asked, "can we combine the two options and try to be as safe as possible: for example, sleep first, wait until you wake us up when you calculate that we have a high probability of returning, and then cross, or, if the crossing is not going well, can we come back here and hibernate to wait for a better time." ”

Xiao Ai replied, "It's okay to sleep first, but once we leave this node and start time traveling, we can't return here at will." The space-time channel is one-way and cannot travel back and forth. After crossing, the passage will automatically collapse and peel off, and the only chance to turn back is to wait for a cycle when the channel is opened again, this is the rule of the universe, otherwise you can all travel through time and space at will, and it will be all messed up. Unless we become higher-dimensional beings through some chance in the process of traveling, we can get rid of the shackles of the existing rules of time, but in that case, there is no concept of going back. ”

It turned out to be a one-way street, which was really troublesome.