Sense must coexist with nonsense

Sense must coexist with nonsense, its shadow. A thing is shadowed by another thing because it's shadowed by itself. Recursion points to coexistence in a nonholistic, not-all (which is to say ecological) possibility space. Metalanguages try to escape this possibility space, to reduce the paradox of coexisting: we entail one another and are not one another. Plants, specters, and hallucinations return more vividly when you try to prune them. To distinguish thought from nonsense is like taking a lifeform out of its habitat.

Timothy Morton, Dark Ecology (Columbia University Press, 2016) p.91