The proposition
Carry the learning, not the library.
Human Capital .+ depends on a person being able to accumulate professional capability across a career. But a portable + cannot simply carry the documents, customer data, internal procedures, source code, prices, designs or other protected material that happened to teach it.
The employer should retain protected information. The person should be able to carry forward the professional capability they legitimately developed through the work.
That sounds simple until we ask what learning actually leaves behind.
The human analogy
People do not leave a workplace as they entered it.
A human expert rarely remembers every report, conversation, mistake or example that taught them something. Yet those experiences leave traces: patterns, intuitions, exceptions, habits of attention and better judgement. Sometimes the person also remembers fragments of where the lesson came from.
Employment already lives with this imperfect boundary. A worker may not take a confidential failure report, but the experience of that failure can permanently change how they design, inspect or decide.
Human Capital .+ should give a person the ability to carry forward what they became through work, without giving them the right to carry forward what the employer owned.
What survives learning
“Remember” and “forget” are too crude.
The fourth category is the uncomfortable one. If a confidential event teaches a person never to repeat a particular mistake, the learning has survived even if the event itself cannot be reproduced. Pretending otherwise would reduce professional learning to muscle memory or information amnesia.
A more useful boundary
Capability is portable only when it is no longer equivalent to the protected information.
Our current working distinction has three categories:
This is deliberately stricter than saying “remove the files and keep the model.” The hard problem is whether the portable capability has become sufficiently abstracted that it is no longer functioning as another form of access to the original protected knowledge.
Three portability tests
Test what the + can do, not only what storage it contains.
We currently see three useful questions for evaluating whether a learned capability is portable. They are not yet a legal or technical standard; they are a way to make the boundary testable.
The goal is not information amnesia. It is protected abstraction.
Runtime confidentiality
Portability should control not only what the + carries, but what each employer is allowed to ask of it.
Even a well-separated + can be pressured into becoming a retrieval tool for a former employer's protected knowledge. The boundary therefore cannot end when the worker changes jobs. It has to remain active during use.
The + should behave like a confidentiality membrane across a career, not a tunnel between employers.
Safeguards & accountability
Suspicious requests should leave evidence without turning one mistake into a permanent blacklist.
Our current direction is a graduated response rather than an automatic permanent ban. The purpose is to protect the worker and every employer in the chain while leaving room for innocent mistakes, ambiguous wording and legitimate review.
The audit trail also protects the worker. In a later dispute, the system could demonstrate that it refused an employer's attempt to recover another employer's protected information instead of merely asserting that confidentiality was respected.
Open design question: The event log itself must not become a new leakage channel. It should preserve enough evidence to prove that a boundary was enforced while minimizing retention of the protected content that triggered the event.
Provenance without the library
The + may need to remember where capability was formed without retaining the protected content.
Complete source amnesia may be undesirable. Provenance can matter for trust, audit and professional identity. A + could potentially retain a record such as:
Capability developed through professional activity at Employer A, 2028–2031. Protected workplace source material is not portable or accessible.
That acknowledges that professional capability came from somewhere without pretending that the employer's underlying material belongs to the person.
Where this can still fail
The principle is clearer than the mechanism.
What would change our thinking
This Perspective is close to the Core, but not ready to enter it.
A credible technical and contractual way to preserve portable professional capability while blocking reconstruction, protected substitution and cross-employer extraction at runtime could justify a future minor Core release. On the other hand, if this distinction proves impossible in practice without either leaking protected knowledge, over-policing legitimate use or erasing most useful accumulated capability, the ownership premise of Human Capital .+ would need a much deeper rethink.