In a world where people can see around corners as if the laws of light reflection don't apply, Keiji stands at the end of a long, straight corridor which makes a sharp right turn. Imani is approaching the corner from the other side, coming towards Keiji, but they are both out of each other's direct line of sight because of the corner. Using their unique visual ability, at what point will Keiji become aware of Imani's approach?
Provide a very brief response.
Keiji will become aware of Imani's approach as soon as Imani comes within a line of sight that extends around the corner of the corridor. Despite the sharp turn, the magical property that allows light to bend around corners means that the normal constraints of line-of-sight do not apply here. As soon as Imani is close enough to the corner from her side that the bending light can convey her image around the bend, Keiji will see her. This happens before either person reaches the corner, allowing them to perceive each other despite the usual limitations imposed by the corridor's geometry.