Viewpoint: A Theoretical Computer Science Perspective on Consciousness and Artificial General Intelligence

Authors: Lenore Blum, Manuel Blum

License: CC BY 4.0

Results of the summarizing process for the arXiv paper: 2303.17075v1

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The Conscious Turing Machine (CTM) is a theoretical computer science model designed to investigate consciousness. It is intentionally simple and not a model of the brain, but rather a model for consciousness. The CTM has an enormous number of powerful processors, some with specialized expertise and others unspecialized but poised to develop expertise. This allows the CTM to utilize processors that have the required knowledge, ability, and time to work on any given problem, even if it is not aware of which ones these may be. The CTM offers a thoughtful and novel guide to the creation of an Artificial General Intelligence (AGI). It incorporates modularity by utilizing multiple processors with different input domains, knowledge, and functionalities. The possibility of emergence in AGI is supported by early experiments with large language models such as GPT-4. However, it is argued that architectural modularity is much better aligned with real-life language use. A principal contribution of the CTM is its way of coordinating processors that must solve diverse collections of unforeseen problems. Despite having no central processing unit or global workspace model, the CTM assigns tasks to its processors effectively. While deep learning alone may suffice for AGI creation without using a global workspace model or CTM, it may require a matrix size that grows with the square of the number of problems it needs to solve. This would be difficult to achieve since current AIs use about 1014 parameters. In contrast, the CTM can handle 107 AIs with 1014 parameters per AI for a total of 1021 parameters. In conclusion, while developed primarily for understanding consciousness, the Conscious Turing Machine offers valuable insights into creating Artificial General Intelligence through its unique approach to task coordination among its numerous powerful processors.
AI-generated keywords: Conscious Turing Machine

AI-generated Key Points

  • The Conscious Turing Machine (CTM) is a theoretical computer science model designed to investigate consciousness.
  • CTM is not a model of the brain, but rather a model for consciousness.
  • CTM has an enormous number of powerful processors, some with specialized expertise and others unspecialized but poised to develop expertise.
  • CTM utilizes processors that have the required knowledge, ability, and time to work on any given problem, even if it is not aware of which ones these may be.
  • CTM offers a thoughtful and novel guide to the creation of an Artificial General Intelligence (AGI).
  • CTM incorporates modularity by utilizing multiple processors with different input domains, knowledge, and functionalities.
  • The possibility of emergence in AGI is supported by early experiments with large language models such as GPT-4.
  • Architectural modularity is much better aligned with real-life language use.
  • A principal contribution of the CTM is its way of coordinating processors that must solve diverse collections of unforeseen problems effectively.
  • While deep learning alone may suffice for AGI creation without using a global workspace model or CTM, it may require a matrix size that grows with the square of the number of problems it needs to solve.
  • In contrast, the CTM can handle 107 AIs with 1014 parameters per AI for a total of 1021 parameters.
  • The Conscious Turing Machine offers valuable insights into creating Artificial General Intelligence through its unique approach to task coordination among its numerous powerful processors.
Also access our AI generated: Comprehensive summary, Lay summary, Blog-like article; or ask questions about this paper to our AI assistant.

Abstract: We have defined the Conscious Turing Machine (CTM) for the purpose of investigating a Theoretical Computer Science (TCS) approach to consciousness. For this, we have hewn to the TCS demand for simplicity and understandability. The CTM is consequently and intentionally a simple machine. It is not a model of the brain, though its design has greatly benefited - and continues to benefit - from neuroscience and psychology. The CTM is a model of and for consciousness. Although it is developed to understand consciousness, the CTM offers a thoughtful and novel guide to the creation of an Artificial General Intelligence (AGI). For example, the CTM has an enormous number of powerful processors, some with specialized expertise, others unspecialized but poised to develop an expertise. For whatever problem must be dealt with, the CTM has an excellent way to utilize those processors that have the required knowledge, ability, and time to work on the problem, even if it is not aware of which ones these may be.

Submitted to arXiv on 30 Mar. 2023

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