The data black hole at the center of AI
In a Nutshell
Frontier AI progress stems almost entirely from scaling massive, task-specific human expert datasets and synthetic RL data rather than improving sample efficiency. Models require orders of magnitude more data than humans—trillions of tokens versus a human’s ~200 million—to reach competence, and even infinite parameter scaling would close only a small fraction of this gap. White-collar automation is feasible only for in-distribution tasks, while out-of-distribution work and true intelligence explosions depend on solving the unsolved sample-efficiency bottleneck.
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One definition of intelligence is sample efficiency: how much data is needed in a given domain to operate fluently and competently. Little progress has been made in improving sample efficiency over recent years. Instead, gains have come from dramatically widening and improving the data distribution. The primary driver of AI improvement has been adding more and better data while scaling the compute required to develop that data.
RL functions as synthetic data generation by applying large amounts of compute against a verifier or rubric (such as an LLM judge) to identify high-quality data, then training the model to predict those correct rollouts in the same manner as next-token prediction on internet text.
For this process to succeed, the model must possess some prior probability of generating the correct solution. This requirement explains the need for large volumes of human expert trajectories across every field and skill the model is intended to master.
Human expert data is highly task-specific and bespoke. Job listings on platforms such as Mercor and Surge illustrate this specificity, including roles for Word specialists converting legacy documents into polished files, legal experts producing realistic M&A diligence reports or securities filings, and management consultants creating template market research documents.
Beyond domain specificity, the volume of data required is substantial. Each skill involves hundreds of human experts generating example completions, writing rubrics, and explaining chain-of-thought reasoning. The data industry supplying these expert labels and the RL environments in which these skills are developed generates billions of dollars in annual revenue, with projections reaching deca-billions.
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