Thread A from
00-thesis-seed.md§9.1: state the axioms tightly and derive what functional form they force. This is the "Shannon Section 1" of value — one clean definition and one provable result.
In the near future, all AI agents are driven by values. If that is true, a theory of value is not philosophy — it is the control theory for agent populations. To route, align, and govern many separated AI individuals we need value to be a measured quantity with laws, not a verdict. Everything below is built to that end.
Shannon measures a probability distribution p = (p₁,…,pₙ) over possible messages. We measure the
structurally-parallel object on the value side:
An agent
Aholds a finite, scarce resource budgetE(free energy, or its proxy: compute, time). It commits that budget acrossngoal-channels as an allocatione = (e₁,…,eₙ),eᵢ ≥ 0,Σeᵢ = E.
Same simplex geometry as Shannon's p; different semantics. eᵢ is resource committed to channel i, not
probability of message i.
Each channel carries a goal-weight kᵢ ≥ 0: how much advancing channel i serves agent A's goal, per
unit of effective progress. The vector k = (k₁,…,kₙ) is the agent-frame — change the agent, change k.
The budget E is frame-independent (the cross-frame invariant of 00 §3); k is what
varies between agents.
The form V(e) = Σᵢ kᵢ ln eᵢ is reached by two structurally different arguments, one static and one dynamic.
Honesty note (2026-06-07, after external review): an earlier version called these "independent, sharing no
premises." That overstates. Axiom A3 (scale-invariant proportional increments) is the static shadow of
multiplicative compounding — "equal multiplicative increments yield equal value increments" already encodes the
logarithm, as §3's proof makes visible (a parallel additive axiom would force a linear v by the identical
Cauchy argument). So the two routes share their load-bearing premise in static vs dynamic form, and their
agreement is a consistency check on the functional form — evidence the choice is coherent, not an
independent over-determination.
The question here is purely static: what functional form for V is consistent with the basic properties a value measure must satisfy? The answer is uniquely logarithmic, proved via Cauchy's theorem in §3.
We want V(e) = Σᵢ vᵢ(eᵢ) (separability across independent goal-channels — Axiom S). For each vᵢ:
-
(A1) Continuity.
vᵢis continuous one > 0. -
(A2) Monotonicity.
vᵢis non-decreasing: committing more resource toward a goal-relevant channel never reduces value. -
(S) Separability. Value over independent goal-channels adds:
V(e) = Σᵢ vᵢ(eᵢ). -
(A3) Scale-invariant proportional increment. The value added by a proportional increase in resource
is the same regardless of the current level:
$$v_i(\lambda e) - v_i(e) = \varphi_i(\lambda)\quad\text{for all } e>0,\ \lambda>0,$$ withφᵢindependent ofe.
A3 is the load-bearing one for this route: it encodes the absence of a privileged resource-unit — value has no absolute zero of scale, just as information has no privileged base of logarithm. It is Cauchy's functional equation in disguise (§3 makes this explicit). This is the rigorous static determination: given these axioms, the only consistent form is logarithmic.
Confirmation B (dynamic): compounding forces the same form — rigorous in 02
The question here is dynamic: when value compounds, what is the correct measure of long-run gain? The
answer, via the ergodicity argument of Peters (2019) and Kelly (1956), is the expected log of the
multiplier. 02 §1–3 develops this rigorously via the repeated game:
the long-run value growth rate is
and the optimal allocation in the horse-race case recovers V* = Σᵢ kᵢ ln eᵢ — the same logarithmic
form, now derived from dynamics with no scale assumption. The two confirmations address different
questions: Confirmation A fixes the static functional form; Confirmation B shows the dynamic optimum
lands on the same shape.
Claim. Any vᵢ satisfying (A1)–(A3) has the form vᵢ(eᵢ) = kᵢ ln eᵢ + cᵢ with kᵢ ≥ 0.
The same form is reached by Confirmation B's dynamic route; per §2's honesty note, their agreement is a consistency check, not independent over-determination.
Proof. Put g(x) := vᵢ(eˣ). A3 with e = eˣ, λ = eʸ gives
g(x+y) − g(x) = φᵢ(eʸ) =: ψ(y), independent of x. Setting x = 0: ψ(y) = g(y) − g(0). Substitute:
h(x) := g(x) − g(0); then h(x+y) = h(x) + h(y) — Cauchy's equation. With continuity (A1), h(x) = kᵢx.
Hence g(x) = kᵢx + g(0), i.e. vᵢ(eᵢ) = kᵢ ln eᵢ + cᵢ. Monotonicity (A2) forces kᵢ ≥ 0. ∎
The Logarithmic Value Law.
It shares Shannon's logarithm but is a genuinely different quantity:
Shannon entropy H(p) = −Σ pᵢ ln pᵢ |
Logarithmic value V(e) = Σ kᵢ ln eᵢ |
|
|---|---|---|
| variable | probability pᵢ (what we don't know) |
resource committed eᵢ (what we spend) |
| log arises from | additivity over independent events | compounding / ergodicity (A3 is a consequence, not a cause) |
| directionality | none — symmetric in outcomes | carried by kᵢ (a goal, a sign, a target) |
sign of the Σ … ln … term |
− |
+ |
The log is the same skeleton reached by two different routes — which is why entropy reappears below as a natural by-product rather than a coincidence.
Maximize V(e) = Σ kᵢ ln eᵢ subject to the budget Σ eᵢ = E. Lagrange: kᵢ/eᵢ = μ, so
Optimal resource allocation is proportional to goal-weight — value-proportional betting. This is exactly Kelly's criterion (J. L. Kelly, 1956), and the lineage is not a coincidence: Kelly was Shannon's Bell Labs colleague and derived proportional betting directly from Shannon's channel capacity ("A New Interpretation of Information Rate"). The historical bridge from information to value already exists; the Logarithmic Value Law generalizes it from gambling returns to arbitrary goal-pursuit.
Substituting e* back:
where k̂ = k/K is the normalized goal-weight vector and H(k̂) = −Σ k̂ᵢ ln k̂ᵢ is its Shannon entropy.
Read the result:
K ln E— realizable value grows with the log of resource, scaled by total goal-stakesK.− K·H(k̂)— the focus penalty: the more an agent's goals are spread out (high entropy), the less value it extracts from the same resource. A focused agent (low goal-entropy) realizes strictly more value.
Shannon entropy thus emerges as a dissipation term — not as the value itself. This is the Second Law of
Value (00 §4) in microcosm: dispersion wastes value.
- Give each agent a focused goal. The focus penalty
−K·H(k̂)is paid per-agent. Diffuse mandates are not just bad management — they are quantified value dissipation. - Allocate resource proportional to goal-weight (
eᵢ* ∝ kᵢ), not equally and not winner-take-all. Both uniform and all-in allocations are provably sub-optimal under the log law. - Value is comparable within a frame, cardinal up to the constant
cᵢ. Across frames (differentk), only the shared invariantEis directly comparable — cross-agent value accounting is the open problem (00§8), and this formalization sharpens why: two agents'Vs live in differentk-bases. - A fleet has an aggregate
V* = Σ_a K_a ln E_a − Σ_a K_a H(k̂_a). Governance = maximize the first sum (route resource to high-stakes agents) while minimizing the second (keep each agent focused).
Stated plainly, in Shannon's spirit of naming the model's assumptions:
- Threshold / all-or-nothing goals. When value is a step (you need exactly
Xto clear a bar — a surgery, a quorum, a launch), value is not concave and A3 fails near the threshold. The log law is the smooth-goal regime. - Satiation. Real value often caps rather than growing unboundedly as
ln E → ∞. A bounded variant (e.g.kᵢ(1 − e^{−eᵢ/sᵢ})) may be needed; A3 then holds only below satiation. - Risk-seeking / convex regions. Gambles, status races, and winner-take-all dynamics produce locally convex value; the concavity that A3 encodes is violated.
- Non-stationary goals.
kdrifts as the agent learns or the world changes. The static derivation is a snapshot; the dynamic theory (howkevolves) is unwritten.
00 §8 warned the theory must do something revealed preference cannot. The log law does:
- it predicts allocation (
eᵢ* ∝ kᵢ) from a single axiom, - it sets a limit (
V* = K ln E − K·H(k̂)bounds extractable value), and - it makes Shannon entropy reappear as a dissipation term — a structural bridge revealed preference has no reason to produce.
- §9.2 (the coding theorem of value). Push the Kelly connection to a growth-rate limit: under uncertainty, the max long-run growth rate of value is bounded by an information-rate term. This is the closest thing to a Shannon capacity theorem for value, and Kelly already did the gambling case — generalize it.
- Cross-frame transformation. Define the map between two agents'
k-bases and find what (beyondE) is invariant. Without it, fleet-level value is only ordinal. - Dynamics of
k. How goal-weights are learned, drift, and are deliberately set (alignment as choosingk).