This is a talk prepared for EMERGENCE/Y, the 2021 ASLE (Association for the Study of Literature and Environment) conference.
Fungi generate and demand subterranean thinking: thinking beyond the visible, thinking that makes connections between things previously supposed to be separate or individual. This talk traces an extended subterranean metaphor that likens (or lichenizes) human language to fungal networks, showing how thinking fungally can transform how we conceive of the strange, underground life of language and our entanglements in it.