What You See Is All There Is

WYSIATI — What You See Is All There Is — names the structural blindness of System 1 to absent information. The system takes whatever is present, builds a coherent narrative, and produces confidence proportional to the coherence of that narrative rather than the completeness of the underlying data. A one-sided argument, experimentally, produces more confidence than a two-sided argument, because the one-sided story is neater. Missing information is not experienced as missing; it simply does not exist from System 1's perspective. The confidence generated is a function of narrative smoothness, not evidential adequacy. In AI collaboration, the bias operates with compounding force: the machine produces output optimized for coherence, and the human evaluates it through a coherence-based confidence heuristic, producing a double WYSIATI where neither participant can detect what the combined output omits.