The problem lies in the fact that the necessary gap is bridged by perception.

Too much alcohol paralyzes our perceptive powers.

Perception is based, to a very large extent, on conceptual models - which are always inadequate, often incomplete and sometimes profoundly wrong.

And it is only a very short step from there, to perception which occurs in the absence of all immediate signals and has to be labeled extrasensory.

This means that our perception of any situation depends only partly on sensory signals being received at that time.