Population figures are rising, harvests are failing, the climate’s becoming more extreme: What alternatives remain for preventing the predicted food shortage? Next to algae and insects, which are receiving a great deal of attention, lichens possess a great deal of potential as a source of nutrition in the future. Extremely hardy, frequently confused with moss, they can be termed a superfood, are effective when used as a medication – and they even grow on Mars! Common orange lichen, a composite organism of algae and fungi, is already widely employed in cities and in agriculture. UNSEEN EDIBLE imagines a society in which lichens are prevalent and commonly used. Taste tests, accompanied by a movie, are available in the form of lichen bread and lichen brandy.