The Original Position

In the AI Story

The original position serves as the contractarian stage on which Rawls's entire theory is constructed. Its specifications are deliberate and philosophically consequential. The parties are rational — they pursue their interests efficiently given what they know. They are mutually disinterested — they neither envy nor sympathize with one another. They possess general knowledge but are blocked from particular knowledge. These constraints produce a determinate choice situation from which, Rawls argued, his two principles of justice emerge as the unique rational choice.

The first principle — equal basic liberties for all — emerges because rational parties, not knowing their conception of the good, will protect the conditions under which any conception can be pursued. The second principle, in two parts — fair equality of opportunity and the difference principle — emerges because rational parties, not knowing their social position, will insist that inequalities benefit those at the bottom.

The original position is Rawls's answer to a question that had troubled the social contract tradition since its inception: how can hypothetical agreement generate actual obligation? Rawls's response is that the obligation does not flow from the hypothetical agreement itself — the parties never actually meet, never actually negotiate — but from the procedure's capacity to model the conditions of impartial reasoning. The principles that would be chosen by parties in the original position are the principles that any rational person must accept, because the original position systematically excludes the grounds on which any rational person might reasonably reject them.

In the AI transition, the original position becomes operational rather than metaphorical. The Weidinger study demonstrated that the original position can be approximated experimentally — that placing real people in veil-like conditions produces real choices that track Rawls's predictions. This empirical turn transforms the original position from a philosopher's device into a usable method for evaluating institutional proposals. The question "would this arrangement be chosen by parties in the original position?" becomes answerable through structured deliberation rather than mere armchair reasoning.

Origin

Rawls introduced the original position in his 1958 essay "Justice as Fairness" and developed it fully in A Theory of Justice. The concept drew on the contractarian lineage — Hobbes's state of nature, Locke's social contract, Rousseau's general will, Kant's kingdom of ends — while departing from each in crucial respects. What Rawls added to the tradition was methodological rigor: the original position was not a narrative device or a historical conjecture but a formal structure whose features could be specified precisely and whose implications could be worked out systematically.

Rawls returned to the original position repeatedly across his career, refining its specifications in response to criticism. His 1985 essay "Justice as Fairness: Political Not Metaphysical" and his 1993 Political Liberalism clarified that the original position should be understood as a device of representation — a way of modeling the requirements of free and equal citizenship — rather than a claim about the metaphysics of persons.

Key Ideas

Formal choice situation. The original position is a fully specified decision context with defined parties, constraints, knowledge conditions, and choice object — the principles of justice themselves.

Rationality under uncertainty. The parties choose under conditions that block the familiar strategies of self-interested bargaining and force the convergence of rational self-interest with fairness.

Device of representation. The original position does not make metaphysical claims about what persons really are; it models the requirements of treating persons as free and equal.

Determinate output. Rawls argued that the constraints of the original position generate a unique rational choice — his two principles — rather than a range of acceptable alternatives.

Constitutional convention successor. After principles are chosen in the original position, Rawls envisioned successive stages — constitutional, legislative, judicial — where the veil is progressively lifted as more particular information becomes admissible.

Debates & Critiques

The most sustained critique of the original position came from Amartya Sen, who argued that the determinacy Rawls claimed for his choice procedure is illusory — that reasonable parties behind the veil could defensibly reach multiple different principled conclusions. Others have argued that the original position's specifications are themselves contested — that the choice of rational parties with particular psychological features, the exclusion of certain kinds of information, and the framing of the decision itself embed substantive assumptions that Rawls presents as merely procedural. These debates have not displaced the original position from the center of contemporary political philosophy, but they have clarified its status as a powerful tool of moral reasoning rather than a demonstration of a unique true answer.