Think on this

摘要

SOMETHING is going on outside your window. Rough oblongs zoom past, one of which sidles along and stops, disgorging a series of small irregular shapes in many colours. High-pitched sounds drift up as they messily assemble into a row behind a taller shape. Microseconds pass and all becomes clear: a group of schoolchildren has pulled up in a bus and lined up behind their teacher. Your brain has taken a chaos of sensory inputs and , produced a lucid experience - as it does day in, day out, throughout your life.