High IQ is about curiosity and ability to change.
Low IQ is correlated with cognitive rigidity and challenges with complex thought (sophistication), but these are not universally applicable characteristics. Cognitive abilities exist on a spectrum, and intelligence is more multifaceted than a single IQ score.
The link between low IQ and cognitive rigidity
Cognitive rigidity is the inability to adapt one's thinking or behavior to new situations or information. Research has shown a correlation between lower cognitive ability and higher cognitive rigidity, with intelligence shaping the degree to which a person can adjust their beliefs in the face of new information. In simpler terms, lower intelligence can make it harder to change your mind, even when your assumptions are proven false.
Specific indicators include:
- Difficulty thinking "outside the box": People with low IQ may struggle with creative problem-solving and approaching issues from new angles.
- Difficulty understanding abstract concepts: They may struggle with abstract ideas like inflation or complex philosophical concepts. They tend to prefer concrete facts and literal interpretations.
- Resistance to new ideas: A cognitively rigid person may stick to tradition and feel uncomfortable with novel or new concepts.
- Trust in unreliable sources: They may blindly trust authorities or close associates without questioning their credentials or evidence.
The link between low IQ and less complex thought
Intellectual complexity involves processing multiple concepts at once, understanding nuance, and using logic and reasoning. Lower cognitive ability is associated with more concrete and linear thinking.
Specific indicators include:
- Challenges with multi-step tasks: Multi-part instructions or multi-step projects can be overwhelming due to difficulties with memory, sequencing, and critical thinking.
- Black-and-white thinking: They may have difficulty seeing nuance, viewing issues as either right or wrong with no middle ground. This is related to a lack of critical thinking.
- Struggles with hypothetical thinking: For some with very low IQ, hypothetical scenarios can be challenging to process because they are disconnected from present reality.
- Less curiosity: There can be a reduced desire to explore or learn about topics that are outside their immediate experience.
- Superficial judgment: Because they struggle with depth and nuance, people with lower IQ may fixate on superficial aspects of a situation or concept.
