Publicly Available Intelligence: The Definition of a Corner

«Physical Corner»
Any intersection of vertical surfaces of inorganic matter or certain organic substances (where the X, Y, and Z axes are each at least 50 cm in length) shall be defined as a "Physical Corner."
Any corner lacking illumination of at least 100 nits is prone to forming a "fissure." Any conscious lifeform that approaches such a spot will "fall into" it and vanish completely without any awareness of the event.
To eliminate Physical Corners, the following measures must be taken:
1. [Arc Structures] – In urban construction, all forms of vertical surface intersections must be prohibited and replaced with arcs.
2. [Total Illumination Coverage] – Ensure that all areas of the city are covered by no less than 100 nits of light at all times. All residential compounds, public spaces, and other collective areas must be equipped with at least two parallel backup power supplies, utilizing both bio-energy and traditional electrical power to ensure the continuous provision of light.
3. [Biological Sensing] – Every household may adopt a special bird species developed through modern genetic engineering known as a "Corner Parrot." This bird is to be hung within the home; should any area meet the conditions for corner formation, the bird will immediately sound an alarm, and the wristband worn by the nearest individual will receive a corresponding notification.

«Psychological Corner»
When human individuals are in an extreme psychological state and negative emotions accumulate to a certain threshold, there is a possibility that a special corner will form within their thoughts.
The individual will hear whispers from the depths of the corner, their desires will be amplified without limit, and they will be induced to undergo abnormal transformations.
In the early stages of a Psychological Corner’s formation, the individual will attempt to maintain a facade. Individuals at this stage are commonly known as "Impostors" or are collectively referred to as the "Abnormal Population."
If an individual can maintain this facade for an extended period without being detected by various psychological tests and comprehensive physical examinations, and once they have fulfilled the "conditions" set forth by the corner, the individual may gain the corner's recognition and be granted special abnormal abilities.
The individual may transform into the object of their deepest inner fear, a phenomenon known as "Phobia-Concretization."
When the facade persists for more than a year and all the corner's requirements for the individual are met, the cognitive corner will reach maturity, capable of inducing and creating extremely dangerous "Regional Anomaly Events."
To prevent the formation of Psychological Corners, the following measures must be taken:
1. [Psychological Screening] – Collective areas such as communities, schools, and workplaces must be equipped with qualified psychological departments. Every person must undergo a psychological examination at least once a month and upload the report; personal psychological screening information will be synchronized in real-time within their wristbands. Individuals who fail to undergo examinations on time will be barred from entering most areas, and those discovered will be subjected to mandatory testing.
2. [Event Monitoring] – Any negative life events, such as diagnoses of terminal illnesses, accidental deaths of family members, divorce, or congenital mental illness, will be centrally cataloged. These specific groups will be subject to heightened surveillance, more comprehensive psychological screenings, and regular one-on-one spot checks.
3. [Public Welfare Activities] – Focus on groups experiencing life difficulties by providing economic and living assistance. Relevant events are to be held in public areas each month to increase the residents' happiness index.
4. [Psychiatric Hospitals] – Establish additional psychiatric hospitals in urban areas on the fringes of the nation, and provide free inpatient services to patients when necessary.