centered sets with moving center

Philip Clayton takes centered sets to the next (uh, 15th century) level:

... does not divide up the world between the “sacred” and the “secular,” as past theologies so often did. All thought and experience bears on it, and all of one’s life manifests it. Thus the distinction between one’s “ministry” and one’s “ordinary life” is bogus. All of one’s life as a Christian is missional.. The great 15th-century theologian and mystic Nicholas of Cusa imagined God as a circle whose radius is infinite and whose center is everywhere. It only takes a second to realize that Cusa’s picture wreaks havoc on all geometries of “inside” and “outside.”
link

Also:

• centered sets with moving center

• Cusa's model from New World Encyclopedia: link