Taylor’s Biology
Taylor’s digestive system is connected to a pocket dimension. I usually introduce it as a “stomach” because it gives people a familiar anatomical reference point. Although, the portal has become integrated deeply enough into her body that describing it as something merely attached to her stomach would undersell how much of her physiology has been reorganized around it.

Taylor still begins eating in a recognizably ordinary way. Her mouth and tongue preserve taste and the sensory experience of food, while swallowing carries material through an ordinary esophagus. What changes at the end of that familiar route is the destination: instead of continuing through a conventional stomach and intestinal tract, swallowed material enters a short portal-adjacent chamber where living tissue can inspect it before anything crosses the dimensional boundary. From there, useful substances can be separated for immediate biological use or placed into long-term storage, while the remaining material can be processed through the pocket dimension.
The portal first functions as Taylor’s replacement digestive interface. Matter arriving from the esophagus is sampled and sorted there, while the same boundary converts dimensional output into forms her metabolism can actually use. Because those jobs have to respond to the condition of the rest of her body, the surrounding tissue also becomes a sensory and autonomic organ rather than a passive doorway.
That regulatory role becomes increasingly important when Taylor is injured. The boundary can alter how much energy is made available, redirect usable matter, and reject something that would poison or destabilize the interface. Regeneration is therefore an extension of the same controlled physiology. Rebirth is the furthest extension of it, used only when the ordinary body can no longer be maintained at all. But we will get to that.
Most of the time, the pocket dimension simply pays Taylor’s ordinary metabolic costs, reducing how dependent she is on food as a source of chemical energy. When her activity rises, that same reserve lets her maintain useful ATP production much longer than an ordinary animal could.
The more dramatic uses are extensions of that advantage rather than separate powers. During an emergency she can temporarily raise metabolic throughput enough to sustain unusual physical output, and damaged tissue can draw heavily on the same supply while rebuilding. Full-body reconstruction is the extreme case: the portal can supply extraordinary amounts of power, but rebuilding an entire Taylor still requires stored matter, developmental organization, circulation, and time.
Her cells still have finite membranes and finite transport rates. Her circulation still has to deliver oxygen and dissolved construction material, while also moving enough water to support chemistry and carrying accumulated heat toward surfaces where it can be lost. Her heart and lungs still have to support the chemical demands created by whatever the portal is helping her do. Her mechanical limits are different again. Muscle can continue generating force when ATP would normally become scarce, but that force still has to travel through tendons and joints into bone. Nervous tissue also has finite conduction and recovery limits. Giving those systems more energetic support can therefore expose them to workloads they were never mechanically built to tolerate.
The portal therefore allows Taylor to continue through conditions that would stop an ordinary body much earlier. That continuation often means she reaches the body’s structural, thermal, respiratory, or material limits with much greater force, and those limits can become more dangerous precisely because exhaustion is no longer intervening soon enough to protect her from them.