The Myth of the Framework

To see why the walls are climbable, it helps to be precise about what a framework is and is not. For Popper, a framework is a body of assumptions we hold — often without noticing — about what the world is like and what counts as a good reason. It is real, and it is powerful. But it is not our skin. We did not choose most of it, yet we can examine any part of it, hold it up to scrutiny, and, if it fails us, let it go. A framework is a starting point, not a destination we can never leave.

The decisive move in Popper's thinking is that a discussion between people who share almost nothing is not a failure to be avoided but an opportunity to be prized. "A clash of cultures," he wrote, in effect, is one of the most fruitful encounters there is — because it forces each side to notice assumptions it had never questioned, simply because everyone around it shared them. The value of the encounter lies in the difficulty. Where two frameworks overlap completely, there is nothing to learn. Where they collide, each becomes visible to the other for the first time.

This is where the book joins the thread that ran through Popper's entire life. He had made his name arguing that science advances not by piling up confirmations but by exposing its theories to attack — by trying, and sometimes managing, to prove them wrong. Knowledge grows through criticism. A theory earns its standing not by being defended from challenge but by surviving it, and every serious challenge is a gift, because it might reveal an error we would otherwise have carried indefinitely.

The myth of the framework quietly shuts this engine down. If criticism only works between people who already share assumptions, then the sharpest challenges — the ones that come from genuinely different starting points — get ruled out in advance as mere misunderstanding. The rival theory, the foreign perspective, the tradition that sees the problem differently: these are exactly the sources most likely to catch what we have missed. To declare them incommensurable is to insulate our own convictions from the criticism most capable of improving them.

Step back from the theory of knowledge and the stakes turn political, which is where Popper's own history makes itself felt. He had watched a civilized country talk itself into barbarism, and he never treated ideas about reason as merely academic. The myth of the framework, for him, was not only a philosophical error. It was a temptation with a body count — because a society that believes people from different frameworks cannot reason together has already given up on the thing that lets a diverse society hold.

An open society, in Popper's sense, is one that keeps its arrangements open to criticism and revision, one that settles differences by argument rather than force. That is only possible if argument across difference is possible. The moment a community decides that its opponents are trapped in an incommensurable worldview — that they cannot be reasoned with, only managed or defeated — the conversation ends and something harder takes its place. Relativism, which presents itself as the friend of tolerance, turns out to disarm the very practice that makes tolerance workable.

The essays in The Myth of the Framework circle back, again and again, to the picture Popper opened with: two people, planted in different soil, who are told in advance that they cannot understand each other. He spent the book showing that this is false — that we begin inside our assumptions but are not sealed within them, that difference is where thinking is sharpened rather than where it stops, and that a rational discussion needs not a shared worldview but a shared willingness to be shown wrong. The wall the relativist takes for granted is a fence, and Popper insisted on climbing it.