1.Overview
World Memory Level (WML) is a global memory capability level framework designed to assess, record, and confirm individual performance across different categories of memory tasks under a unified structure.
WML does not focus on general knowledge. Its assessment centers on core memory performance, including information encoding efficiency, structural organization, memory capacity, and accurate recall under defined conditions. The framework is based on the principle that memory capability can be trained and developed, rather than understood as the result of innate talent alone.
The term “World” indicates the use of cross-cultural and broadly applicable information types and task structures. Assessment materials may include numbers, images, language vocabulary, historical events, geographical information, and temporal structures. This design helps reduce the influence of regional, linguistic, and background differences on assessment interpretation, and provides participants from different regions with a relatively consistent setting for demonstrating memory capability.
World Memory Level adopts a ten-level structure from Level 1 to Level 10. The level structure emphasizes progressive development and performance stability, while taking into account both long-term accumulation and time-constrained efficiency. At higher levels, supplementary modules may be introduced to further distinguish complex information processing, structural transformation, and integrated memory performance.
From a governance and implementation perspective, World Memory Level is established under the capability framework and assessment principles published by WBO (World Brain Organization). Certification administration and operational execution are carried out by WBEO (World Brain Elite Organization). Certification results are issued through a standardized identification and record mechanism and may be verified through the official verification system to support transparency and traceability.
To maintain the reasonableness of assessment standards and capability distribution, WML operates through an annual execution version system. The project structure remains relatively stable, while specific qualification parameters and material banks may be adjusted through annual data review and practice-based feedback. Implementation follows the officially released version for the applicable year.
2️.Level Structure
World Memory Level adopts a ten-level structure from Level 1 to Level 10, used to classify memory capability performance across different stages of development.
The level structure is organized around progressive capability development. It covers stages from the establishment of foundational memory structures, to improvements in capacity and efficiency, and further to complex information processing and structural transformation. Levels are not distinguished by memory capacity alone. They are assessed through a combination of information encoding efficiency, recall accuracy, structural organization, and stable output performance.
Foundation Stage (Level 1–3)
The foundation stage emphasizes the establishment of memory structures and the standardized application of methods.
Participants are expected to demonstrate stable information encoding ability and accurate recall in standard tasks. This stage is mainly used to confirm whether foundational memory capability has been formed and whether it can be presented consistently under unified rules.
Intermediate Stage (Level 4–7)
The intermediate stage focuses on the parallel improvement of capacity and efficiency.
At this stage, memory performance should begin to show clearer structural features and repeatability. Participants are expected to maintain a relatively high level of accuracy under time-constrained conditions and demonstrate sustained, stable task completion.
Advanced Stage (Level 8–10)
The advanced stage introduces supplementary assessment modules on the basis of existing capability. These modules are used to further distinguish complex information processing, structural transformation, and integrated memory performance.
This stage focuses on:
· high-density information processing;
· multi-dimensional information integration;
· accurate reconstruction of complex structures;
· stability under pressure.
Some supplementary modules are opened only at the corresponding advanced levels, in order to maintain clarity and consistency in higher-level capability differentiation.
Qualification Principle
Each level has a corresponding set of comprehensive qualification requirements.
Level determination is based on the integrated result of project performance and the points mechanism. Specific qualification parameters, project requirements, and implementation details are governed by the officially released version for the applicable year.
Level recognition is not based on age, profession, or background as capability-evaluation factors. It is primarily based on the participant’s actual memory performance under the prescribed projects and unified rules.
3️.Assessment Modules
World Memory Level uses a multi-module assessment structure to evaluate memory capability from different perspectives, including capacity, speed, structural organization, and stable recall performance.
The assessment system is organized into four main categories:
· Non-Timed Accumulative Modules;
· 5-Minute Speed Memory Modules;
· 10-Minute Structured Memory Modules;
· Advanced Supplementary Modules.
The categories and basic structure of the assessment modules remain relatively stable. Specific quantity requirements, qualification thresholds, material banks, and implementation details may be calibrated and updated according to the annual execution version. Actual implementation follows the officially released standards for the applicable year.
I. Non-Timed Accumulative Modules
Non-Timed Accumulative Modules do not use a unified time-limited memorization window as the primary assessment format. They focus on participants’ long-term accumulation, stable mastery, and accurate recall of structured information.
Under the applicable project rules, participants may form accumulative points through formal assessment or staged performance records. This category emphasizes information capacity, accuracy, long-term stability, and consistency of recall.
Non-Timed Accumulative Modules include:
1. Countries and Regions Information Memory
Memorization and recall of countries, regions, and related structured information entries.
2. Pi Digits Accumulative Recall
Assessment of long-term memory capacity and accurate recall using continuous numerical sequences.
3. Geographical Coordinates Memory
Assessment of structured information memory and recall using global landmarks, locations, and coordinate-based information.
4. Flags and Identifiers Recognition
Recognition, matching, and recall using flags and identifiers of countries, regions, or international organizations.
This category mainly assesses:
· information capacity;
· recall accuracy;
· long-term stability;
· mastery of structured information.
II. 5-Minute Speed Memory Modules
5-Minute Speed Memory Modules are used to assess information encoding efficiency, short-term capacity, and accurate recall within a short time window. Each project uses a unified memorization duration, followed by recall within a prescribed output period.
Some projects may allow multiple attempts or best-score selection mechanisms. Specific rules are governed by the annual execution version.
5-Minute Speed Memory Modules include:
1. Fast Numbers Memory
2. Speed Cards Memory
3. Binary Digits Memory
Memorization and recall of 0/1 sequences.
4. Native-Language Vocabulary Speed Memory
Vocabulary memorization and recall conducted in the participant’s native language across different language environments.
5. Graphic and Image Memory
Memorization and recall of images and their numbers, positions, or corresponding relationships.
This category mainly assesses:
· encoding speed;
· short-term capacity;
· stability under interference;
· output accuracy.
III. 10-Minute Structured Memory Modules
10-Minute Structured Memory Modules focus on the structured processing of complex information. They assess the participant’s ability to organize, associate, retain, review, and recall multi-element information within a longer memorization window.
These modules use a fixed memorization duration, followed by corresponding written recall and reconstruction within the prescribed time.
10-Minute Structured Memory Modules include:
1. Multilingual Correspondence Memory
Memorization and recall of cross-language item correspondences.
2. World Historical Events Structured Memory
Structured recall based on event elements, including time, figures, contributions, or labels.
3. Memory Palace Review Memory
Review, corresponding completion, and accurate recall using tables, scenes, or structured information groups.
This category mainly assesses:
· structural organization;
· element association;
· review and reconstruction ability;
· accurate recall of complex information.
IV. Advanced Supplementary Modules
To further distinguish higher-level capability performance, World Memory Level introduces supplementary modules at advanced stages. These modules are used to assess higher information density, more complex structural transformation, and stronger integrated recall ability.
Supplementary modules are opened by level stage and serve as an important component in differentiating advanced levels.
Advanced Supplementary Modules include:
· Level 8 Supplementary Module: Names and Faces Memory
· Level 9 Supplementary Module: QR Code Memory
· Level 10 Supplementary Module: World Time Zone Conversion
This category mainly assesses:
· high-density information processing;
· multi-element correspondence and integration;
· structural transformation;
· stable performance under pressure.
The opening level, scoring method, and qualification requirements of supplementary modules are governed by the officially released version for the applicable year.
4️.Scoring & Annual Framework
World Memory Level uses a points-based mechanism as the integrated basis for level determination. Points are used to measure differences across projects in difficulty, structure, and performance requirements under a unified framework, and serve as an important basis for level qualification.
Participants must complete assessments within the prescribed project scope and meet the qualification requirements defined in the annual execution version in order to receive corresponding points and level recognition.
The basic structure of the points rules remains relatively stable. Qualification thresholds, quantity parameters, material banks, and implementation details for each project may be calibrated and updated through annual data review and practice-based feedback. Actual implementation follows the officially released version for the applicable year.
I. Sources of Points
World Memory Level points mainly come from three sources.
1. Accumulative Points
Accumulative Points mainly come from non-timed modules.
Points in this category are awarded according to the participant’s completed quantity range, accuracy, and stability of recall. They primarily reflect long-term accumulation and stable recall capability.
Accumulative Points are generally not directly tied to a single target level. They may be used to form continuous performance records and serve as important capability evidence in level determination.
2. Timed Qualification Points
Timed modules have corresponding qualification standards at different levels.
When a participant’s performance in a designated project meets the annual requirement for the target level, the participant may receive the corresponding points for that project. Projects that do not meet the required standard are not counted toward the qualification points for that level.
This category mainly reflects the participant’s information encoding efficiency, short-term capacity, recall accuracy, and stable output performance under time-constrained conditions.
3. Advanced Supplementary Points
Advanced-level stages open supplementary modules to further distinguish higher-level memory capability performance.
Participants who meet the relevant supplementary module standards may receive corresponding supplementary points. These points are mainly used for differentiated determination at advanced levels, with emphasis on complex information processing, structural transformation, and integrated recall ability.
II. Qualification Principle
Each level has comprehensive qualification requirements.
Level determination is based on the integrated result of points across multiple projects and is confirmed according to the level qualification conditions defined in the annual execution version. Points from different projects together form a structured assessment of memory capability performance, rather than a simple accumulation of single-project scores.
Level recognition is primarily based on the participant’s actual memory performance under the prescribed projects and unified rules. Age, profession, or background are not used as capability-evaluation factors.
III. Excellence Bonus
Some projects include an S+ standard, used to identify performance within the highest performance band of that project.
When a participant reaches the S+ standard, bonus points may be awarded. S+ is a project-level excellence marker and points-based incentive mechanism. It does not constitute an independent level and does not alter the overall level structure of World Memory Level.
The applicable projects, qualification standards, and points rules for S+ are governed by the officially released version for the applicable year.
IV. Annual Execution Version
To maintain stability, comparability, and ongoing calibration in level assessment, World Memory Level operates through an annual execution version system.
The annual version is mainly used to:
· calibrate qualification parameters for each project;
· optimize material banks and question-bank structures;
· refine implementation details and review procedures;
· adjust capability differentiation standards between levels.
The project categories and overall structure of World Memory Level remain relatively stable. The annual execution version mainly updates specific parameters, material banks, implementation details, and review mechanisms.
The officially released version for the applicable year serves as the basis for certification execution and level determination for that year.
5️.Recognition & Credentialing
World Memory Level establishes a recognition and credentialing system to distinguish, confirm, and display different types of certification status, instructional qualification, and contribution records.
The system consists of three parts:
· Level Badges: used to identify World Memory Level certification status;
· Certified Instructor Badges: used to identify qualified training guidance and standards-implementation credentials;
· Contributor Badges: used to confirm contributions to system outreach, practical implementation, or development.
These three categories belong to different dimensions. A Level Badge is not equivalent to instructional qualification. A Certified Instructor Badge does not represent a higher level of memory capability. A Contributor Badge does not constitute level certification or instructional qualification.
I. Level Badge System
Prometheus Badge
World Memory Level sets a corresponding badge for each level from Level 1 to Level 10, used to display the certification level status obtained by a participant.
The level badge is uniformly named the Prometheus Badge. The name expresses the system’s principle that memory capability can be trained, methods can be transmitted, and capability can develop progressively. The badge serves as a visual identity and certification-display tool. It does not alter the assessment standards of the level itself.
The visual structure of the Prometheus Badge includes the following design meanings:
· Outer Four-Corner Structure
Corresponds to the core values advocated by WBEO: Equality, Liberty, Advancement, and Openness.
· Four-Directional Geometric Structure
Represents a capability-demonstration environment across regions, languages, and cultures, reflecting the globally oriented unified framework of World Memory Level.
· Central Star Element
Represents the relationship among memory methods, structured capability, and knowledge transmission. It emphasizes that memory capability involves not only information retention, but also encoding, organization, recall, and expression.
Level Color Identification (Level 1–10)
Level badges use different color combinations to distinguish level stages. Colors are used for visual identification and stage expression. They do not represent actual materials and are not used as a basis for level determination.
· Level 1–3 | Rose Gold · Black
Represents the foundation stage of structural establishment. This stage emphasizes the transition from scattered memory toward method-based, structured, and recallable memory performance.
· Level 4–5 | Rose Gold · White
Represents the stage of stable output. This stage emphasizes recall accuracy, output consistency, and repeatable presentation of foundational capability.
· Level 6–7 | Platinum · Orange
Represents the stage of efficiency improvement. This stage emphasizes coordinated improvement in encoding efficiency, retrieval speed, and accuracy.
· Level 8 | Platinum · Blue
Represents the stage of complex-structure control. This stage emphasizes stable recall and consistent performance under more complex information structures.
· Level 9 | Gold · White
Represents the stage of advanced coordination. This stage emphasizes coordination among large-scale information processing, rapid recall, and structured output.
· Level 10 | Gold · Orange
Represents the stage of complete advanced performance. This stage emphasizes stability, efficiency, and integrated recall capability under high-intensity task conditions.
A Level Badge is awarded only after the participant has passed the corresponding level certification. It is used to identify the participant’s World Memory Level certification status.
II. Certified Instructor Badge System
World Memory Level establishes a Certified Instructor Badge system to identify instructor qualifications related to training guidance, standards implementation, and understanding of the framework.
A Certified Instructor Badge represents instructional qualification and understanding of implementation standards. It is not equivalent to a higher World Memory Level, and it does not directly represent an individual’s personal memory capability level.
Certified Instructor Badges are divided into three levels. Colors are used for visual identification:
· Junior Instructor | Green Badge
Indicates foundational understanding of method structures and standardized guidance capability, with the ability to provide basic training support within the prescribed scope.
· Intermediate Instructor | Blue Badge
Indicates more systematic training guidance capability, with the ability to support training planning, process observation, and method adjustment at intermediate stages.
· Senior Instructor | Red Badge
Indicates mature understanding of the system, standards implementation capability, and higher-level instructional support capability, with the ability to undertake more complex training guidance and implementation coordination responsibilities.
Certified Instructor qualifications are granted through the corresponding review procedure and may be subject to re-evaluation or status updates under annual rules. Specific application conditions, review standards, and re-evaluation requirements are governed by the officially released rules for the applicable year.
III. Contributor Badge System
World Memory Level establishes a Contributor Badge system to recognize individuals or groups that have contributed to system outreach, practical implementation, social impact, resource support, or mechanism development.
A Contributor Badge is a contribution record and recognition marker. It does not represent World Memory Level certification, nor is it equivalent to Certified Instructor qualification.
Contributor Badges are divided into three levels. Colors are used for visual identification:
· Junior Contributor | Rose Gold
· Intermediate Contributor | Platinum
· Senior Contributor | Gold
The cross-star element of Contributor Badges uses a unified cyan color. Cyan is used to express connection, dissemination, and extension, reflecting the spread of memory training methods and capability-development principles across different groups and settings.
Contributor Badges are reviewed and granted by WBEO under the applicable rules. They may be awarded on the basis of a specific event, staged contribution, or sustained contribution, and are entered into the relevant issuance records. Specific evaluation conditions, granting procedures, and record methods are governed by the officially released rules for the applicable year.
IV. Credential & Verification
World Memory Level certification results are confirmed through formal certificates. Each certificate includes a standardized identifier, certification level, issuance information, and record information to support traceability and verification.
To maintain clear institutional boundaries, World Memory Level certification records are verified through the official WBO verification system. Certificate authenticity and current status may be checked through the WBO Verification Center.
Verification results confirm whether the relevant record exists in the WBO / WBEO standards database and display its current status. Verification results do not constitute academic credentialing, government authorization, professional licensure, or any other qualification with administrative legal effect.