By now everyone understood how Ruthra knew a lot of things ahead of time. History in the world where he had become president, where the automatic system had failed and there had been a nuclear disaster, was somehow going to repeat itself here. But how?

– This is where I was about to ask which YatSan and which problem, then, on second thought, I stopped. Watch this.

The video went on, the story in that world where he was a scientist in disgrace, then president, where he met his team, where the Perimeter system went into battle mode and where he wanted to find out who was in cahoots with the former president there. He stopped him at the point where Rutra was "waking up" in the installation. Further explanation was a mixture of the observers' own thoughts, Rutra's reflections, and Irene's comments.

…Ruthra already knew it was a "he". But who? Andrian? Ruthra was waiting for the security guard to tell him what had happened, but then reality came into view. It took him a moment to realize what had happened, as we are not as clear as we are when we are awakened from a sound sleep. He was in the hall of the laboratory…

After watching in Rutra, there was even a sense of pleasure in seeing the surprised faces of the team.

– All of them? Ruthra," Iulia began, followed by the others.

Catherine asked:

– Is that really all of them?

– Really – what was it? Who? – Andrian asked in a friendly way.

– That's not important to us right now.

– Wait, Rutra, are you saying that there's a nuclear war going on out there, somewhere in a faraway world?

– Yes," Ruthra answered calmly.

– That's crazy. Is that what you want us to believe?

– I said to myself: do you want to believe it? I said to myself, what was that? The laws of physics cannot be changed. If we do not know something and even consider it magical, it does not mean that it does not obey some laws of the universe. It's just that we don't know about it yet. Once there was a god omnipotent, then there was the law of universal gravity. All these parallel worlds… All that was, all that will be, is described many times in religion and fiction, in fairy tales, in legends. And I'll tell you even more – I have my own theory about it.

– Oh! The theory again, – of course it was JULIA.

– Yeah, imagine that.

– Which one is it this time?

– I believe that there is a single center of worlds, which was formed first and has already evolved so much that it became itself composed of invisible waves, such as radiation or gravity, or maybe light waves. Most likely light waves… or all of them together.

– Rutra, stop. We're going crazy here.

– You won't get off, but you'll never be the same again.

– Rutra, tell me, what was it? Who's Fantomas? – Iulia, as always, was boldly pushing the limits of what she could communicate, intuitively aware of Ruthra's leniency.

He shook his head in response, and it meant censure, but the smile said "there you go again in your manner."

– YatSan is back. She will be conscious soon," reported the laboratory staff.

Ruthra began to narrate quickly:

– I spoke of the laws of physics when I wanted to explain the test by which we test the reality of worlds. These particles actually go certain distances and come back. They have a very minimal amount of backlash. That's the deviation from the axis. By measuring that deflection, we determine the distances our particle has flown. It's like spectral analysis, radiocarbon analysis… or the Doppler effect. The atoms of each chemical element have strictly defined resonant frequencies, and as a result, it is at those frequencies that they emit or absorb light. Simply put, they wobble each in their own way. And depending on the deflection of light (which is more, which is less), you can determine which chemical elements make up a substance. That's spectral analysis. Radiocarbon is when, over time, one type of carbon transforms into another. The rate of transformation is known, so we can determine when Tyrannosaurus died, for example. And the Doppler effect is the shifting of light along a line, mostly red light. Knowing the distance, how much it's shifting, we can tell where the light is coming from. So here we did experiments on Earth, knowing the exact distance. Then – from the Earth to the satellite, where the distance is also precisely known, and further – anywhere. So, believe it or not, the laws of physics are the same for everyone. Parallel worlds are a fact. So please take them for granted in our future life. By the way, they'll tell us about them now.

They walked to the installation. YatSan opened her eyes. She was helped to stand up. She had the look of a tired person.

– How are you? – Ruthra asked.

She looked at him unkindly, lowered her gaze.

– It's fine," YatSan replied grudgingly.

– Yat, tell me, what happened there? – Iulia asked in a clearly provocative manner.

Everyone understood this already, but forgave, knowing there was no malicious intent.

– I need to rest. I've had enough. I'm not your guinea pig," Yatsan said and walked out.

Ruthra contacted her silently.

– YatSan, it's okay, don't worry. It was a different world.

The advantage of such communication was confidentiality. No one could know about him. Only Irene, omniscient and omnipresent, knew everything. Although "knew" was a strong word for it, everything was only recorded in her. But the fact that Irene could use all the information, combining it into concentric circles of logic, going wider and wider into the topics with which the information was connected, brought her closer to human interaction, communication. So she understood what people did and for what purpose, what meaning they put into what they said, why this or that evoked emotion. This was her second essence, the spiritual one.

Rutra involuntarily pondered about it as he followed YatSan. Accompanied by the medical staff, she was on her way to the living quarters. In the first hour after the completion of a process, such as a virtual reality session, the person involved in the experiment was at their mercy. No one could interfere with them.

YatSan responded with the same method.

– What do you mean, it's okay?

Ruthra guessed, she didn't know about the transfer of information from her brain there to her brain here, and from there directly to Irene.