Some varieties of emergentism are not specifically concerned with the mind -- body problem .
Some varieties of emergentism instead suggest a hierarchical or layered view of the whole of nature , with the layers arranged in terms of increasing complexity with each requiring its own special science .
Some varieties of emergentism are not specifically concerned with the mind -- body problem , and instead suggest a hierarchical or layered view of the whole of nature , with the layers arranged in terms of increasing complexity with each requiring its own special science .