Regeneration
Taylor’s wound repair still proceeds through recognizable biological phases. An injury first needs an inflammatory response that clears damage and establishes the signals telling nearby tissue that repair is required. Cells can then proliferate and migrate into the affected region while new blood vessels grow far enough into the repair to support it. Surface tissue closes the wound, but closure is not the end of healing; the resulting structure still has to remodel into tissue capable of surviving ordinary force.
Portal energy can accelerate several expensive parts of that sequence without replacing them. Cells have more energetic support for division and for the protein synthesis required to build new structures. They can maintain the membrane pumps that keep their internal chemistry viable while migrating into damaged regions. Once they arrive, however, they still have to construct and reorganize extracellular material so that the repair becomes actual tissue rather than simply more cells.
Once energy ceases to be the main bottleneck, successful regeneration depends much more heavily on organization. The vascuole has to contain enough matter to construct the missing tissue, but that material is useful only if cells receive the positional information telling them what they are supposed to become. Rapidly growing tissue then needs oxygen, which in turn means vascularization has to keep pace with the expanding structure. The same circulation that supplies oxygen also becomes part of the cooling problem because extremely active regenerative tissue generates heat that has to be carried away.
Mechanical integration arrives later. A repaired limb or organ cannot be considered complete merely because the correct cell types exist. New tissue has to connect to the surrounding vasculature and become innervated. Its fibers and extracellular structures have to align with what survived the injury, and the whole repair has to mature enough to withstand the forces it will experience after Taylor begins using it.
Full regrowth exaggerates those same requirements. A protected boundary niche supplies the initial regenerative competence and positional information. Blastema-like tissue can then expand outward, but recognizable organs have to differentiate from it rather than appearing fully formed. Circulation has to develop alongside them, nerves have to reconnect the growing body into one coordinated organism, and structural tissue has to make that new organism mechanically self-supporting.