Saturday, 22 July 2017
Thus, if Carl refuses to return, the first problem will be the arrival in the twentieth century of that Carl who did appear in the Gothic period and enact the betrayal. Carl’s current intransigence would have prevented his departure from the present but not his arrival in the past because that had happened earlier. I quote the rules of time travel taught in the Academy.
Everard tells Carl that an incipient causal loop can set up a resonance which can produce catastrophically multiplying historical changes. He does not tell us what a resonance is but could it mean this? - Carl’s refusal to conduct the mission of betrayal duplicates Carl; then, if either Carl travels further into the past than the Gothic period, there is the danger that, when he returns to the twentieth century, it will be to the twentieth century of a timeline in which Odin’s descendants were not betrayed, did defeat their enemy and did bring it about that an entirely different story was recorded in the Volsungasaga, thus preventing the history in which a Carl Farness sets out to track down the origin of the story of Odin’s betrayal.
-copied from here.
I have copied an earlier attempt to answer a question asked in current posts. Manse Everard says that an incipient causal loop can set up a resonance that can produce catastrophically multiplying changes of history. Can it? Does the Patrol know this? How often has it happened? How was it rectified? Or is Manse's statement mainly theoretical?
In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies. Frequencies at which the response amplitude is a relative maximum are known as the system's resonant frequencies or resonance frequencies.
-copied from here.
A resonance is an interaction between two systems or between a force and a system. Catastrophically multiplying changes of history must mean that one change would cause so many other changes that it would be difficult or impossible for the Patrol to identify and counteract the original change.