Consider the physical consequence.
Robots, machines and energized devices affect their surroundings. A digital approval alone does not answer whether a particular movement or energy release is appropriate under current physical conditions.
PHYSICAL ACTUATION · IRONPU™
IronPU™ addresses independent physical execution authority over motion, force and energy. An AI command can look correct yet still face a separate question before it acts in the real world: may it move?

Physical AI safety, in WisdomLink™’s public architecture, is the discipline of controlling consequential physical actuation at its own boundary. Digital authorization is not automatically physical permission. The physical action must be evaluated on terms appropriate to the real-world consequence.

A movement command is ready, but a person has entered the workspace. The task may still be authorized while the immediate physical conditions have changed.
IronPU™ addresses independent permission before motion, force or energy reaches the real world.
Robots, machines and energized devices affect their surroundings. A digital approval alone does not answer whether a particular movement or energy release is appropriate under current physical conditions.
The permission question and the observed physical outcome are distinct. Evidence about the relevant action and its result supports later review instead of treating a command as proof of what happened.
SGU™ addresses consequential digital execution. IronPU™ addresses physical actuation. If work is interrupted, WakeSeal™ addresses what may resume under present conditions. Permission at one boundary does not automatically authorize another.
Development stage. WisdomLink™ is developing patent-pending design IP. This page explains public purpose and illustrative use; protected implementation details are not disclosed.