The Overton Window
The concept describes a range of policies seen as publicly acceptable at a given time.
The Mechanism: The Overton window is a model for the range of ideas considered politically acceptable or discussable in a particular context. It can shift through organizing, events, leadership, media, and changes in public opinion.
The Philosophical Pivot: What seems realistic is not a fixed measure of what is possible. Public norms can constrain debate, while collective action can make previously marginal ideas understandable.
The Horizon: The concept helps analyze political change but can be used strategically to normalize extreme positions or dismiss ethical questions as impractical. Acceptability is not the same as justice.
The window is not a scientifically measured line with one universal observer. Different communities and institutions may recognize different boundaries at the same time.
Political imagination changes when people ask not only what can win today, but what should become thinkable tomorrow.
What a society calls realistic can be a record of its present limits, not its permanent ones.
Which policy do I call impossible because of evidence, and which because I have learned not to imagine it?