Surgery Godfather

Chapter 2275: Chapter 1473: Circle

Chen Xiao appeared at the door of Yang Ping’s office, holding a stack of printed data, with a calm expression. Yang Ping had just placed his teacup on the table when he saw him standing at the door, gesturing for him to come in.

"Chen Xiao? What’s the matter?"

Yang Ping was quite surprised, as Chen Xiao usually didn’t have much presence.

"Professor, I’ve found it." Chen Xiao’s tone was very flat, as if he were talking about something utterly ordinary. "The mechanism of embryo development, I’ve rederived it from the perspective of a unified theory, and there’s a result. It is basically consistent with the Weberman Einstein repair mechanism; the underlying logic is the same."

Yang Ping put down the teacup he had just picked up, "Go on."

Since returning from Stanford and joining Yang Ping’s team, Yang Ping had given Chen Xiao an important task: to study embryo development from the perspective of Yang Ping’s new unified theory. He had been working quietly, seemingly without much presence, and now suddenly came to report.

Chen Xiao walked to the whiteboard and picked up a pen. He drew a straight line, marking "fertilized egg" on the left end and "adult body" on the right end. Then he drew several nodes in the middle: blastocyst, gastrula, neural embryo, organogenesis phase. Each node was connected with arrows.

He said, "Standard developmental biology textbooks say that from fertilized egg to adult body, these stages are passed. Each stage has its hallmark events. In the blastocyst stage, cells begin to differentiate; the gastrula stage forms three germ layers; the neural embryo stage forms the neural tube; the organogenesis phase forms each organ. Everyone has learned these things. But no one has asked the question: Why these stages? Why this order?"

Yang Ping didn’t say anything and waited for Chen Xiao to continue. Chen Xiao drew a second line above the first one, parallel but in the opposite direction, starting from the right end and extending to the left end.

"Repair program, after injury to adult tissue, initiates the repair program. The time sequence of the repair process is symmetrical and opposite to the development process. Development goes from early to late, repair goes from late to early. The inflammation stage corresponds to early embryo cell migration; the proliferation stage corresponds to mid-embryo cell differentiation; the remodeling stage corresponds to late embryo organ formation. It’s not one direction, but the opposite direction. Development is from nothing to something; repair is from something to restoration. Development is from point to surface; repair is from surface to point. Development is from simple to complex; repair is from complex back to simple. They follow the same logic, just in opposite directions."

He drew a folding symbol between the two lines, overlapping them.

"Development program and repair program are a pair of folding lines. One moves forward, one backward. Using the same map, walking the same path. The so-called repair is not inventing something new; it’s playing the development program in reverse."

Yang Ping leaned back in his chair, his gaze never leaving the whiteboard.

"Chen Xiao, could you repeat that passage again? Slower, more complete."

Chen Xiao turned back to the front of the whiteboard.

"I tracked the entire process of mouse embryo development. From the fertilized egg to birth, day by day without omission. Every time point of development events, spatial position, participating genes, executing proteins, cell behavior, all recorded. The data volume is large, so large that I didn’t know how to handle it myself. Later, I placed the repair program map beside it and compared the two. Then I found that the events in the repair program are of the same type as those in the development program, but the sequence is reversed. The first event in development is cell migration; the last event in repair is also cell migration—but the direction is reversed. The last event in development is blood vessel generation; the first event in repair is blood vessel generation—the direction is reversed. The timing of gene expression is also reversed. The genes expressed early in the embryo are expressed later in the repair process of the adult body. The genes expressed later in the embryo are expressed first in the repair process. It’s not simple reverse; it’s complete mirror symmetry."

Yang Ping stood up and walked to Chen Xiao’s side, picked up a pen, and wrote two lines on the whiteboard: Development Program: Gene A→Gene B→Gene C→Gene D. Repair Program: Gene D→Gene C→Gene B→Gene A. Then he drew an equals sign between the two lines.

"Equal," he said, "but not equal in content, equal in structure. It’s not A equals D, but the relationship from A to D equals the relationship from D to A. The order itself is key."

Chen Xiao looked at that line of words for a long time, "Professor, if this discovery holds true, it means we can predict every step of the repair program from embryo development data. Embryo development happens first, and repair happens later. Development has been researched for hundreds of years, the data is abundant and complete. If we can use development data to predict repair, then the repair program will no longer be an unknown field. All the paths that need to be taken, development has already walked through once. We just need to reverse the order."

At ten o’clock in the morning, Yang Ping convened an emergency seminar for the whole institute in the meeting room.

Not many people attended, but each one was a key player: Tang Shun, Lu Xiaolu, Weber, Manstein, Chen Xiao, Jiang Jitong, and so on. Yang Ping stood in front of the whiteboard.

"Chen Xiao," Yang Ping said, "Once more, tell them what you just told me."

Chen Xiao stood up and walked to the whiteboard, redrawing the comparison chart of the development program and repair program. The straight line from fertilized egg to adult body, the reverse line from adult body to damaged tissue, two folding symbols, one equals sign. After drawing, he turned around, facing everyone present.

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