If you imagine that the future is modeled by differential equations, and that Alice can discern the coefficients for these equations to within a certain value, there will be certain equations which are obviously determined (f~=f' and others which aren't (f~=.0001*f')
In the same way that people feel that tables are solid, because the reaction to their hand is fairly determined, and pillows are soft, because the reaction depends on how you're moving your hand, it makes sense (to me) that predicting the future could easily have fuzzy areas.
If this isn't how it works, then Alice should be able to do NP-complete problems in polynomial time, as in rationalist!Harry's experience with the time turner. Perhaps this will be explored?
Wow, that sounds like including it might involve math. Sorry.
In the vein of the Harry Potter and the Methods of Rationality discussion threads this is the place to discuss anything relating to Alicorn's Twilight fanfic Luminosity. The fanfic is also archived on Alicorn's own website <strike>(warning: white text on black background)</strike>.
Previous discussion is hidden so deeply within the first Methods of Rationality thread that it's difficult to find even if you already know it exists.
Similar to how Eliezer's fanfic popularizes material from his sequences Alicorn is using the insights from her Luminosity sequence.
Spoilers for the fanfic itself as well as the original novels need and should not be hidden, but spoiler protection still applies for any other works of fiction, except for Harry Potter and the Methods of Rationality chapters more than a week old so we can freely discuss similarities and differences.
EDIT: Post-ginormous-spoiler discussion should go to the second thread. (If you have any doubt on whether you have reached the spoiler in question you have not.)