It was a startling discovery.
Jeff stood completely still in his room, at ease, "listening" to the living, breathing quasi-organism (and yet so much more) that was the transdimensional Multiverse. The everything of which he was a small part, and of which he contained the whole. It was validation he was searching for, verification of what he had just known. And there it was, known once again. It was different than he was, but then that was expected of course. But more to the point, it was an unexpected different; it wasn't like him in that he was human and had come to be this Jeff who he is now. This wasn't human and had always been here, but was playing human.
Why? He asked with a thought. He lifted his foot from his bedroom floor... as he did, part of him was even contemplating the dimensional interaction he was opening, how science fiction called it warp space, hyperspace, or "tesseracting." All of those terms were as inaccurate as they were descriptive, completely lacking in any grasp of the actual reality of something as simple as a hypercube.
...And set his foot down in the secret TransDem Labs Heartland headquarters, more specifically Doctor Henry Worthington's office. The question he had asked with his mind echoed here: Why?
The small human body that represented Worthington - or more specifically the entity that played Worthington to interact with human beings - turned in his chair, not at all surprised by the living body of the teenager that appeared seemingly out of thin air in his office. The being posing as a human named Worthington was so much larger than the physical body that it manipulated easily like a puppet-master. The being that is Jeff could see the being playing Worthington, it was always here. It was vast, even by Jeff's new standards.
"Because," it responded, in the same manner Jeff had asked, but also with Doctor Henry Worthington's physical mouth as well. They both stood, facing one another. Was any person to come into the office, they would see two people looking intently at each other, these two individuals were so much more than the meat suits by which humans perceived them; they saw so much more than the mere fraction that humans could perceive. The communication was beyond words... beyond telepathy. It was more primal and more advanced all at once, and they understood each other perfectly in a way that mere human language could never achieve.
In that moment, Jeff knew the Worthington entity didn't have to learn in the way that he, Jeff, had learned. The single question asked was actually multifold, they both knew this. To say this interaction was efficient would be vastly understating it. In a single "word" (for lack of a better human construct), Jeffery knew who this was, why this was, what exactly the Chronivac was, and why this entity had visited it upon humanity. And the answer scared him, because it intimated something he wasn't quite ready to see yet, because he didn't know if humanity could survive it.
The entity was bound by the same understandings that had freed Jeff from the bonds of human understanding, just as Jeff was. The single answer made further questions moot; Jeff knew he had to retreat to consider what he had just learned, and that if he wasn't very careful something very bad would happen.
The being that is Jeff took a second step, this time back into his room, leaving the entity watching from a distance.
In a still, hidden corner of his being, beyond the perception of anything not Jeff, he metaphorically curled up into a small fetal postion, and started shaking violently.