Things could not be forever ordered and formulated. He had to find the rhythm of change and see between the changes to the changing itself. - Frank Herbert

The prescience, he realized, was an illumination that incorporated the limits of what it revealed- at once a source of accuracy and meaningful error. A kind of Heisenberg indeterminacy intervened: the expenditure of energy that revealed what he saw, changed what he saw.

And what he saw was a time nexus within this cave, a boiling of possibilities focused here, wherein the most minute action - the wink of an eye, a careless word, a misplaced grain of sand - moved a gigantic lever across the known universe. He saw violence with the outcome subject to so many variables that his slightest movement created vast shiftings in the patterns.

The vision made him want to freeze into immobility, but this, too was action with its consequences.

Hittite law emphasized restitution rather than revenge. Humankind lost a certain useful practicality when it chose the other Semitic response — never to forgive and never to forget.

Prophecy and prescience — How can they be put to the test in the face of the unanswered question? Consider: How much is actual prediction of the “wave form” (as Muad’Dib referred to his vision-image) and how much is the prophet shaping the future to fit the prophecy? What of the harmonics inherent in the act of prophecy? Does the prophet see the future or does he see a line of weakness, a fault or cleavage that he may shatter with words or decisions as a diamond-cutter shatters his gem with a blow of a knife?