Intelligence

Intelligence is the capacity of an agent to build models with predictions that reliably match reality, across a range of new situations that becomes wider. Intelligence includes the capacity to correct those models when they fail. Intelligence is measured, not declared. The measures are these: how widely, how reliably, and in how much novelty and stake the models of the agent continue to match reality. A last measure is how fast the agent corrects error. Intelligence is a continuum, not a kind. It does not depend on the material of the agent, or on the method that made an output. It depends only on this: do the models function? The distinction is agent against non-agent, not human against machine.