Emergentist panpsychism in turn takes two forms. Gregg Rosenberg (2004) and Godehard Brüntrup (2016) have each defended a form of layered emergentism, according to which human minds co-exist with the micro-level conscious subjects that give rise to them and sustain them throughout their existence. The resulting picture is structurally similar to the “British emergentism” of the 19th and early 20th century: in both pictures new fundamental entities and forces appear when matter reaches a certain level of complexity.[10] However, panpsychist emergentists are arguably committed to a less radical form of emergence than non-panpsychist emergentists, as the emergent entities are of the same kind as the micro-level entities from which they emerge.