Long horizon agents

https://x.com/i/status/2011491957730918510

That can perform an hour of work

Has anyone else used them

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Good article. Looks like it was created just before Claude Cowork was released yesterday as well. Cowork does much of what engineers were doing in Claude Code to process files but doesn’t require coding experience. It is only on their Max plan right now, but should be available to Pro plan customers shortly. The team created this tool in 10 days once they saw the market need.

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Hmmm… Maybe too much to post?

I’ve actually done work in the field. I see little close to AGI.

Four thinkers get us close:

  • Thomas Cover
  • Richard Dawkins
  • Karl Popper
  • Jeff Hawkins

Some brief thoughts follow…

Thomas Cover fits into this landscape as the mathematician of Darwinian competence: he formalized why blind variation plus selection works so well, while remaining largely silent on knowledge, meaning, or explanation. That places him upstream of Dawkins and Dennett, partially aligned with Popper, and explicitly short of Deutsch.

A map of this intellectual landscape follows.

1. Thomas Cover: the mathematics of blind success

Thomas Cover’s work—especially Cover’s theorem—shows:

You do not need insight, understanding, or foresight to solve hard problems.
You need rich variation and a simple selection rule.

What Cover proved

  • High-dimensional representations make discrimination easy
  • Random feature expansion is powerful
  • Selection (error minimization) does the organizing
  • Performance can arise without comprehension

This is Darwin’s algorithm expressed in geometry.

Cover explains why:

  • Evolution works
  • Machine learning works
  • Scaling beats cleverness

But he does not claim these systems understand anything.

2. Relationship to Dawkins: formalizing the Blind Watchmaker

Richard Dawkins explains conceptually what Cover shows mathematically.

Dawkins Cover
Random mutation Random feature expansion
Natural selection Loss minimization
Cumulative adaptation Iterative convergence
Blind watchmaker High-dimensional geometry

Key alignment

  • Both show how design-like success arises without design
  • Both undermine arguments from improbability

Difference

  • Dawkins focuses on biology and intuition
  • Cover focuses on formal performance guarantees

Cover is Dawkins’s argument with equations.

3. Relationship to Dennett: competence without comprehension

Daniel Dennett takes Dawkins’s logic and applies it to minds.

Dennett’s key phrase:

“Competence without comprehension”

Cover supplies the technical foundation for this claim:

  • Systems can behave intelligently
  • Without knowing why they succeed
  • Without internal models
  • Without explanations

Dennett philosophically endorses this as enough to ground mind-like behavior.

Cover remains neutral:

  • He proves competence
  • He does not infer understanding

So:

  • Dennett extends Cover metaphysically
  • Cover stays strictly formal

4. Relationship to Popper: selection without criticism

Karl Popper draws a sharp line: Selection creates adaptation.

Criticism creates knowledge.

Cover’s systems:

  • Eliminate error via external criteria
  • Do not generate conjectures
  • Do not criticize hypotheses
  • Do not test counterfactuals

From a Popperian view:

  • Cover’s systems adapt
  • They do not know

Popper would say:

Cover explains how organisms and machines cope — not how they understand.

Thus Cover fits below the epistemic threshold Popper sets for knowledge.

5. Relationship to Deutsch: everything short of explanation

David Deutsch makes the strongest distinction.

Deutsch accepts:

  • Dawkins’s Darwinism
  • Popper’s epistemology
  • Dennett’s evolutionary reach

But adds:

Explanatory knowledge is categorically different.

From Deutsch’s perspective:

System Status
Evolution Blind adaptation
ML (Cover-style) Scaled-up reaction
Human minds Explanatory engines

Cover’s work explains why non-explanatory systems can become extremely powerful — but also why that power stops short of understanding.

Deutsch would say:

  • Cover explains how competence scales
  • He does not explain how explanations arise
  • And nothing in Cover’s mathematics implies that they ever will

6. The unifying picture

You can think of the four thinkers as describing layers of the same algorithm, with increasing epistemic demands:

Thinker What is explained
Cover Why blind systems can perform
Dawkins Why blind systems can look designed
Dennett Why blind systems can seem mindful
Popper Why some systems produce knowledge
Deutsch Why explanation changes everything

Cover sits at the base layer: the engine of success without understanding.

Thomas Cover shows why Darwinian processes can achieve extraordinary competence without insight; Dawkins popularizes this fact in biology, Dennett extends it to minds, Popper draws the boundary where knowledge begins, and Deutsch insists that explanation marks a genuine, world-altering discontinuity beyond anything Cover’s framework entails.

Deutsch has stated that no one can program AGI until they have an explanation of how it will work.
This seems at odds with the observed fact that natural selection evolved brains that can form make explanations.

**Hawkins’s theory **

Jeff Hawkins proposes that intelligence arises from:

  • Thousands of cortical columns

- Each building independent predictive models of the world

  • Anchored to sensorimotor reference frames
  • Voting together to form perception and behavior Intelligence, on this view, is:

- Distributed

  • Model-based
  • Grounded in prediction and control
  • Fundamentally biological and physical

This is a theory of how brains work, not primarily of epistemology or philosophy.

2. Relation to Dawkins: biological competence without foresight

Hawkins appears fully aligned with Richard Dawkins on the evolutionary side (Dawkins wrote and intro to Hawkins newest book):

- The neocortex exists as a product of cumulative natural selection

  • Its architecture embodies implicit knowledge of the world
  • No designer or foresight required
  • Intelligence emerges from incremental improvements

Where Dawkins stops at explaining how complexity arises, Hawkins continues into how that complexity is implemented in neural tissue.

Hawkins can be read as Dawkins applied to brains.

3. Relation to Dennett: competence without comprehension

Hawkins fits most naturally with Daniel Dennett:

  • Intelligence is built from many sub-personal competences
  • No single “central thinker” is required
  • Meaning and perception emerge from distributed processes
  • Prediction replaces representation-as-mirror

Dennett’s slogan “competence without comprehension” could serve as a summary of Hawkins’s cortical columns:

  • Each column is locally competent
  • None has global understanding
  • Intelligence emerges statistically

Hawkins supplies a mechanism for Dennett’s philosophical claims.

4. Tension with Popper: models vs criticism

Here Hawkins begins to diverge from Karl Popper.

Popper’s key requirement for knowledge:

- Conjectures

  • Criticism
  • Error elimination independent of survival

Hawkins’s models:

  • Predict and update
  • Are corrected by sensory mismatch
    - But are not criticized as explanations
  • Do not generate alternative theories deliberately
  • Do not reason about falsifiability

Thus:

  • Hawkins explains adaptive learning
    - Popper explains epistemic justification

Hawkins’s brains adapt; Popper’s minds criticize.

5. Clear gap with Deutsch: explanation and infinity

The largest philosophical distance is from David Deutsch.

Deutsch’s defining criteria:

  • Explanatory knowledge
  • Counterfactual reasoning
  • Universality
  • Open-ended progress
  • Self-reflective criticism

Hawkins’s system:

  • Builds world models
  • Predicts sensory input
  • Navigates space effectively
    - But does not explain why things must be so
  • Does not generate theories about its own theories
  • Has no notion of truth, only prediction accuracy

From Deutsch’s perspective:

Hawkins explains how adaptive intelligence works, not how explanatory knowledge arises.

Hence, Hawkins’s theory does not, on its own:

  • Account for science
  • Explain creativity
  • Bridge to consciousness as self-aware explanation
  • Support unbounded cultural progress
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https://x.com/i/status/2011607073642201338

The moment has hit us for coding already. Next, general knowledge work (@reflection_ai). Teams of AI colleagues. Real world agents for robotic applications (@SkildAI). AI agents for chip design (@RicursiveAI). Legal agents (@Harveyaisol). Medicine (@EvidenceOpen).

Or it all might be Claude Cowork, Codex, etc. There might be a slight moat to finetune a model to improve domain specific intelligence, but that might be overtaken by a new model 3-6 months later.

image

Unless they mean using a scaffold for Opus 4.5, but then someone else could create the scaffold on demand.

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https://x.com/jackclarkSF/status/2013627068144066576

https://x.com/belindmo