Attention scarcity migration names the structural pattern by which binding constraints in information economies relocate to whichever resource remains scarce after a previous scarcity is technologically resolved. Andreessen observed this pattern across two successive transitions: when distribution costs collapsed through the internet, scarcity migrated from distribution to attention; when execution costs are collapsing through AI, scarcity is migrating from execution to judgment. The framework generalizes Herbert Simon's 1971 observation that a wealth of information produces a poverty of attention, and provides the specific economic mechanism through which each phase of the information and AI revolutions has restructured industries, labor markets, and the locations of captured value.
The attention economy's empirical emergence traces to the late 1990s and early 2000s. As internet distribution costs approached zero, the economic question shifted from who can reach the audience (distribution) to who can hold the audience (attention). The companies that captured the largest economic returns of the internet era — Google, Facebook, Amazon — were those that captured attention at scale, often through algorithmic curation optimized for engagement.
Andreessen's articulation of the pattern, developed across Andreessen Horowitz's investment memoranda and public writing in the 2010s, emphasized its structural character. The migration from distribution to attention was not a contingent feature of specific companies but a predictable consequence of what happens when one scarcity is resolved. The pattern could be used to predict where value would accumulate in the information economy, and the firm's investment thesis was explicitly organized around this prediction.
The AI transition introduces a second migration. As execution costs collapse through language models and related tools, the binding constraint moves from producing output to evaluating output. This second migration, the Andreessen — On AI volume argues, is the most consequential shift in the economics of cognitive work since the distribution-to-attention migration that defined the previous generation of internet companies.
The framework has specific implications for labor markets, professional education, and corporate strategy. Labor that was previously valued for its execution capacity is being repriced to reflect the value of its evaluative capacity — a repricing that produces winners and losers whose identity depends on which capacity an individual has cultivated. Professional education organized around execution training faces obsolescence questions it has not confronted in previous generations. Corporate strategy must now account for the possibility that execution-heavy business models face structural repricing, while judgment-heavy models face new competitive advantages.
The framework's limits are increasingly visible. Judgment is not a single capacity; it decomposes into forms that develop differently. The attention-to-judgment migration may itself be incomplete — some forms of judgment are being absorbed into AI systems through RLHF and related techniques, suggesting the next scarcity migration may already be beginning.
The distribution-to-attention component of the framework crystallized in Andreessen's thinking through the 2000s as he observed the economic patterns of the commercial internet. The execution-to-judgment extension developed in 2023–2025 as the specific capabilities of frontier AI systems became visible. The full framework in its current form appears in the Andreessen — On AI volume and in Andreessen Horowitz's AI investment thesis.
Structural migration pattern. Binding constraints in information economies do not disappear when technology resolves them; they relocate to whichever resource remains scarce.
Distribution-to-attention phase. The internet's collapse of distribution costs produced attention as the new binding constraint — the structural foundation of the attention economy.
Execution-to-judgment phase. AI's collapse of execution costs is producing judgment as the new binding constraint — the structural transition the current moment represents.
Labor market repricing. Each migration produces specific repricing of labor categories, with the new scarce resource commanding a rising premium over the previously scarce resource.
Recursive possibility. The pattern may continue — as AI absorbs specific forms of judgment, scarcity may migrate again to forms of evaluative capacity that remain difficult to automate.
The framework faces several sustained critiques. The first argues that treating scarcity migration as a structural pattern obscures the specific political and economic decisions that determine where value actually accumulates. The second argues that the framework treats the migrations as smooth when they are typically highly contested, producing sustained distributional conflicts the framework occludes. The third argues that the framework's implicit narrative — each migration produces new opportunities for those with the new scarce resource — may be true in aggregate while being false for specific populations whose skills become obsolete faster than they can develop replacements.