Misjudging distance seems to be a very frequent suspect in tales of the unexplained. "The light moved at an extraordinary speed" - it moved at an ordinary speed

Misjudging distance seems to be a very frequent suspect in tales of the unexplained. "The light moved at an extraordinary speed" - it moved at an ordinary speed, close to you. Likewise "through the distant moors it stalked - a panther!" - a pet cat.