Ken Wilber argues that science, developmental psychology, contemplative mysticism, sociology, and systems theory each capture a genuine slice of reality — and each one, treated as the whole picture, becomes a reductionism that distorts understanding.

The trap he's naming:

• A neuroscientist who insists consciousness is entirely neural firing isn't wrong about the neurons — but wrong to conclude subjective experience is therefore an illusion
• A purely spiritual worldview dismissing empirical science ignores an entire dimension of legitimate, testable knowledge

Wilber's ambition: a genuinely integral map that holds multiple valid ways of knowing simultaneously, without collapsing them into each other or declaring one the sole legitimate truth.