But is his perception, is the police chief's perception that the crime problem in Chicago has thesamedimensions as in New York - it has thesame causes, it's got thesame pattern, for example - that this would be addressed by?
If predators are able to operate only inthesame number of dimensions as their prey as is the case for lions and zebra, or barracuda and schooling fish then individuals at the centre of a group really should be safer than those at the edges.