“The weird sisters, hand in hand, Posters of the sea and land, Thus do go, about, about: Thrice to thine, and thrice to mine, And thrice again, to make up nine.”
The Sisters is a trilogy inspired by The Witches of Macbeth, who represent the desire for foreknowledge and the inherent evil that such power represents.
Depth:Perception plays on the idea that knowing too far into the future removes us from the present. We effectively erase any need to know the future as we have killed the present that any foreknowledge would effect; this infinite loop is simply a wish from the monkey’s fist.