Question: What could possibly have been lit by a garrison in Fatlips Castle?

Context paragraphs:
Computationally bounded adversary: In information theory, the computationally bounded adversary problem is a different way of looking at the problem of sending data over a noisy channel.  In previous models the best that could be done was ensuring correct decoding for up to "d"/2 errors, where d was the Hamming distance of the code.  The problem with doing it this way is that it does not take into consideration the actual amount of computing power available to the adversary.  Rather, it only concerns itself with how many bits of a given code word can change and still have the message decode properly.  In the computationally bounded adversary model the channel – the adversary – is restricted to only being able to perform a reasonable amount of computation to decide which bits of the code word need to change.  In other words, this model does not need to consider how many errors can possibly be handled, but only how many errors could possibly be introduced given a reasonable amount of computing power on the part of the adversary.  Once the channel has been given this restriction it becomes possible to construct codes that are both faster to encode and decode compared to previous methods that can also handle a large number of errors.

Persona: A persona (plural personae or personas), in the word's everyday usage, is a social role or a character played by an actor.  The word is derived from Latin, where it originally referred to a theatrical mask.  The Latin word probably derived from the Etruscan word "phersu", with the same meaning, and that from the Greek πρόσωπον ("prosōpon").  Its meaning in the latter Roman period changed to indicate a "character" of a theatrical performance or court of law, when it became apparent that different individuals could assume the same role, and legal attributes such as rights, powers, and duties followed the role.  The same individuals as actors could play different roles, each with its own legal attributes, sometimes even in the same court appearance.  According to other sources, which also admit that the origin of the term is not completely clear, "persona" could possibly be related to the Latin verb "per-sonare", literally: "sounding through", with an obvious link to the above-mentioned theatrical mask.

LifeDrive: The LifeDrive was a Palm OS-based handheld personal digital assistant device that was produced by PalmOne, a former incarnation of Palm, Inc. The device was PalmOne's first and only foray into the "Mobile Manager" device category.  As its name suggests, Palm intended the LifeDrive to be capable of providing all the capabilities and data storage space that a user could possibly need during the course of the day, including contacts, calendar, music, images, video, and applications.  At the time of release, the 4-gigabyte capacity that was chosen for this task could not be achieved using the flash memory used by most PDAs, while keeping the cost of the device low enough for consumer purchase.  For this reason, a 4 GB microdrive hard disk drive was selected for the task.  It featured a separate data partition that could be used as a portable disk drive.  The LifeDrive featured Bluetooth and Wi-Fi connectivity, the first Palm handheld to feature both.  The device came pre-loaded with eReader, Documents To Go, and WiFile software.

Peel tower: Peel towers (also spelt pele) are small fortified keeps or tower houses, built along the English and Scottish borders in the Scottish Marches and North of England, intended as watch towers where signal fires could be lit by the garrison to warn of approaching danger.

Temperament Isolation Theory: Temperament Isolation Theory, also known as personality bias or personality discrimination, is a recent social science theory that attempts to explain how cultures favor a specific temperament and how they view and interact with those of other or opposite temperaments.  The first concepts of the theory were explored by Susan Cain in her book "" where she looked at how western cultures, particularly the United States, value extroversion over introversion and how that could possibly make it difficult for introverts to thrive in society.  Northern Arizona University professor Jorge Rodriguez III took the idea a step further and viewed how the opposite could be viewed in eastern cultures where introversion is valued over extroversion.  These observations and further research led to the concept of "personality bias" which suggests certain personalities are favored over others and that these opposing personalities are "intentionally or unintentionally oppressed or muted."  The concept of personality bias was later formally formulated into Temperament Isolation Theory.  The theory is currently not widely accepted among social scientists, but it is gaining ground thanks to the research of Rodriguez and others.

R v Stinchcombe: R v Stinchcombe, [1991] 3 S.C.R. 326 is a landmark Supreme Court of Canada decision on the disclosure of evidence in a trial and is considered by most to be one of the most significant criminal law cases of the decade.  The Court found that the Crown had a duty to provide the defence with all evidence that could possibly be relevant to the case, regardless of whether the Crown plans to call that evidence at trial or not, or whether it helps or hurts the Crown's case.  This case put to rest the long-standing issue of whether the Crown could purposely deny the defence evidence that the Crown found would be harmful to their case.

F-scale (personality test): The California F-scale is a 1947 personality test, designed by Theodor W. Adorno and others to measure the authoritarian personality.  The "F" stands for "fascist".  The F-scale measures responses on several different components of authoritarianism, such as conventionalism, authoritarian aggression, anti-intraception, superstition and stereotypy, power and "toughness," destructiveness and cynicism, projectivity, and sex.  Scores acquired from the F-scale could be directly associated with background components, educational level, and intellectual capacity.  It is an indirect type of test that ensures the result would not be due to the individual's fake responses; this is possible because the purpose of the measurement and which attitude is being measured are initially concealed from the participants.  The existence of this correlation could possibly affect the way in which the F-scale accurately measures the authoritarian personality syndrome.  The F-Test has two principal purposes: it aims to measure prejudice and anti-democratic tendencies at the personality level.

Héctor Narcia Álvarez: Héctor Narcia Álvarez (born 16 December 1957) could possibly be a Mexican politician that might be affiliated with the PVEM.  He may currently serve as Deputy of the LXII Legislature of the Mexican Congress potentially representing Chiapas.  He also possibly served as Deputy during the LX Legislature (then affiliated with the Party of the Democratic Revolution).

Fatlips Castle: Fatlips Castle is a pele tower in Roxburghshire, in the Scottish Borders.  Situated at the top of Minto Crags, above the River Teviot, it was built in the 16th century by the Turnbulls of Barnhills, notorious Border reivers, and owners of nearby Barnhills Tower and farm.  In 1545, during the War of the Rough Wooing, the Earl of Hertford burned "Mantoncrake", or Mynto Crag.

KOI-7296.01: KOI-7296.01 (also known as K07296.01) is an exoplanet orbiting in the habitable zone around the F-type star KOI-7296.  Depending on the planet's density, it could be an ocean planet, a mini-Neptune, or a mega-Earth if terrestrial.  The exoplanet itself is unlikely to host terrestrial life due to its large radius but it has the potential of harboring moons that could possibly support life as we know it.

Supporting paragraphs: Fatlips Castle Peel tower
Answer: signal fires