Instant:
an infinitesimal space of time; especially: a point in time seperating two states
Cognition:
The term cognition (Latin: cogito, “to think”) is used in several loosely-related ways to refer to a facility for the intelligent processing of information. In psychology, it is used to refer to the mental processes of an individual, with a particular focus toward the study and understanding of mental states (ie. beliefs, desires and intentions) in terms of information processing especially in the area of context awareness (ie. abstraction or concretization), or where processes involving knowledge, expertise, or learning are at work.
Intuition:
Apprehension or cognition, that is, knowledge or conviction without consideration, thought, or inference.
Source: Wikipedia
Instant Cognition is, simply, Intuition. I’ve provided some definitions below but in the context of Report Design, what we really want to do is create reports that are intuitive - that is, they are immediately understood. Users do not have to puzzle over what we mean or why we did something. Instead they grasp the information immediately and can start working on the important stuff - what action can they take to replicate the successes shown in the report, to recover from the weaknesses exposed by the report, etc.