We're actually really lucky that [physics] works, because no one knows why the thoughts in our heads should relate to the fundamental workings of the universe.

Glattfelder is pointing to the classic philosophical puzzle behind the “unreasonable effectiveness” of physics and mathematics: it is not obvious why human cognition—evolved for survival at a particular scale—should be able to formulate abstract theories that accurately describe the universe’s deepest structure. Calling this “lucky” underscores the contingency of our epistemic situation: the fit between mind and world might have been far worse, leaving us with only local, pragmatic know-how rather than deep explanatory science. The remark also gestures toward humility in scientific realism: even when physics works spectacularly, the meta-question of why our concepts map onto reality remains open.