Research

Where AI still needs help

Taking the Hendrycks CHC battery as the most precise public score, and reading it against Chollet, Morris, Legg, and METR: the remaining work is not “more knowledge.” It is storage, retrieval discipline, working memory as an object, novel reasoning, and faculties a text lattice cannot fake.

General Knowledge

Kmedium scaffold

Breadth of factual understanding: commonsense, culture, science, social science, history.

The gap
Parametric knowledge is wide but stale, uneven, and unowned by a particular life.
The prosthesis
Semantic memory plus retrieval tools can hold private, up-to-date facts the weights never saw.
The limit
Does not give the model a living world-model; it still quotes rather than inhabits knowledge.

Layers aimed here: Semantic memory, Tool use, World model

Reading & Writing

RWlow scaffold

Consuming and producing written language, from decoding to composition and usage.

The gap
Frontier models already match or exceed a well-educated adult on most literacy tasks.
The prosthesis
Style constitutions and revision loops polish voice; they do not create literacy.
The limit
Long-form consistency still drifts without an external outline.

Layers aimed here: Constitution

Mathematical Ability

Mmedium scaffold

Arithmetic through calculus, probability, and formal manipulation.

The gap
Symbolic slips persist when the model does arithmetic in prose.
The prosthesis
A calculator and program-of-thought tools catch the slips the weights still make.
The limit
Novel proof strategy remains a reasoning problem, not a tool problem.

Layers aimed here: Tool use

On-the-Spot Reasoning

Rhigh scaffold

Flexible attention on novel problems: deduction, induction, theory of mind, planning, adaptation.

The gap
Fluid intelligence on unseen puzzles (ARC-style) and multi-step plans still collapse without search.
The prosthesis
Planner, debate, and reflexion implement System-2 search around the model — the move Claude Code, Deep Agents, and Tree-of-Thoughts all make.
The limit
Search over tokens is not Chollet's skill-acquisition efficiency. The model does not get better at the next novel task.

Layers aimed here: Hierarchical planner, Reflexion critic, World model, Metacognition, Skill library, Internal debate, Goal stack

Working Memory

WMhigh scaffold

Maintain and manipulate information in active attention across modalities.

The gap
Context windows are a poor working memory: they rot, they are not addressable, they are not operated on.
The prosthesis
A scratchpad the agent can read, write, and edit is the standard ACI from SWE-agent onward.
The limit
Cross-modal working memory still needs the model's native vision/audio, not a text board.

Layers aimed here: Working memory

Long-Term Memory Storage

MShigh scaffold

Continually learn new information — associative, meaningful, and verbatim. The paper's sharpest remaining zero.

The gap
GPT-5 still scores 0. Weights do not update from a conversation. Every session is amnesia.
The prosthesis
Episodic and semantic stores (Letta, Mem0, this harness) persist experience outside the weights — the only working prosthetic for MS today.
The limit
Hendrycks et al. call this a capability contortion. RAG is not LoRA. The model does not become the memory; it consults it.

Layers aimed here: Episodic memory, Semantic memory, Skill library

Long-Term Memory Retrieval

MRhigh scaffold

Fluency and precision of access, including the refusal to confabulate.

The gap
Hallucination is a retrieval-precision failure. Search tools hide it without fixing it.
The prosthesis
Ground answers in stored memories; metacognition forces a confidence tag when the store is empty.
The limit
The generator can still ignore the retrieved note. Precision is a discipline, not a guarantee.

Layers aimed here: Episodic memory, Semantic memory, Reflexion critic, Metacognition

Visual Processing

Vlow scaffold

Perceive, analyze, reason about, generate, and scan visual information.

The gap
Scaffolding in text cannot see. Native multimodal models closed some of this; GUIs and spatial scans remain weak.
The prosthesis
Computer-use and screenshot loops (Claude managed agents, Operator-class systems) are the visual prosthesis.
The limit
This web harness does not embody a pointer. Vision stays a model capability, not a lattice one.

Layers aimed here: none — model-native

Auditory Processing

Alow scaffold

Discriminate, recognize, and work creatively with speech, rhythm, and music.

The gap
Speech I/O is now a product feature; rhythmic and musical judgment are not.
The prosthesis
TTS/STT wrap the model. They do not give it an ear.
The limit
Out of scope for a text harness. Honest gap.

Layers aimed here: none — model-native

Speed

Smedium scaffold

Simple cognitive tasks quickly: perceptual speed, reaction, number facility, pointer fluency.

The gap
Token generation is fast at easy tasks and slow at hard ones; it is not human reaction time.
The prosthesis
Tools (calc, clock) and caches make easy operations exact and cheap.
The limit
A deliberative lattice makes hard tasks slower on purpose. Speed is not the goal of proto-AGI.

Layers aimed here: Tool use

What scaffolding cannot do

  • Weight-level continual learning without catastrophic forgetting. A database is not a LoRA. Hendrycks et al. are explicit about this.
  • Chollet-style skill-acquisition efficiency. Test-time search can look like fluid intelligence until the next distribution shift (ARC-AGI-2).
  • Real vision, audition, and pointer fluency. This chamber is text.
  • Economic AGI in the OpenAI-charter sense. A logged-in workspace is not a firm.
  • A self that persists because it changed, rather than because we stored a note.