Related Experiment Video
Updated: Mar 2, 2026

Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres
Published on: December 1, 2014
Logic, passion and the problem of convergence
1Department of Biology, Duke University, Science Drive, Box 90338, Durham 27708, NC, USA.
Intelligence convergence may depend on how we define its components. This study re-examines motivation and action, proposing intelligence comprises non-affective (logic, problem-solving) and affective (emotions, preferences) capacities, with non-affective convergence being more likely.
Area of Science:
- Cognitive Science
- Philosophy of Mind
- Artificial Intelligence
Background:
- Current definitions of intelligence often conflate reason and emotion.
- This confusion complicates estimates of intelligence convergence in non-human species.
- David Hume's theory of motivation and action offers an alternative framework.
Purpose of the Study:
- To propose a revised framework for understanding intelligence by separating affective and non-affective capacities.
- To re-evaluate the likelihood of convergence on human-style intelligence based on this new framework.
- To explore the implications for artificial intelligence and the search for extraterrestrial intelligence.
Main Methods:
- Revival and application of David Hume's theory of motivation and action.
- Decomposition of intelligence into distinct non-affective (logic, calculation, problem-solving) and affective (wants, preferences, emotions) capacities.
- Analysis of the likelihood of convergence for each capacity set in diverse contexts.
Main Results:
- The conventional understanding of intelligence, mixing reason and emotion, is conceptually flawed.
- A clearer distinction between non-affective and affective capacities is proposed.
- Convergence of non-affective capacities in thinking species appears probable.
- Convergence of affective capacities seems significantly less likely.
Conclusions:
- Estimating intelligence convergence requires distinguishing between its affective and non-affective components.
- Non-affective cognitive abilities may converge more readily across different evolutionary or ecological contexts.
- Affective capacities, being more context-dependent and potentially idiosyncratic, are less likely to show convergence.
Related Concept Videos
Ampere-Maxwell's Law: Problem-Solving
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the...
Region of Convergence of Laplace Tarnsform
Consider a decaying exponential signal that begins at a specific time. When deriving its Laplace transform, the time-domain variable is replaced with a complex variable. This...
Ampere's Law: Problem-Solving
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
Types of Limits II
The Power Flow Problem and Solution
Introduction to Limits

