When a team keeps solving the same problem in slightly different ways without ever noticing the pattern, they aren't failing at execution — they're failing at a prior level, what philosopher of science Imre Lakatos called the 'protective belt.' Lakatos observed that every research program has a hardened core of assumptions so fundamental that practitioners unconsciously shield them from falsification, deflecting contrary evidence onto peripheral hypotheses instead. Product and leadership teams do exactly this: they adjust roadmaps, rewrite specs, reshuffle priorities — tweaking the periphery — while the core assumption ('we're solving the right problem,' 'our users want what we think they want') never faces scrutiny. The work Lakatos described as genuine intellectual progress wasn't adding more experiments; it was the hard act of identifying which assumption sat at the center and deliberately exposing it. Before your next strategy review, name the one belief that, if wrong, would make everything else irrelevant.

What is the one assumption your team has never seriously challenged — not because evidence supports it, but because questioning it would feel too disruptive?

Drawing from Philosophy of Science / Organizational Epistemology — Imre Lakatos (The Methodology of Scientific Research Programmes, 1978)