# Intensity Within physics a measure of the concentration of energy within a given, delimited area; in relationalist physics intensity replaces the old substance as a general yardstick, in social relationalist sociology attentional intensity replaces the old growth of the economy as a general yardstick, in syntheist ethics the ecstatic intensity in [[The Infinite Now]] replaces all dated maxims for the existential experience and *the memory of the infinite now* is the bearing of life's identity-generating references; see also [[Relationalism]] and *social relationalism.*