Brendan Kelly Ph.D.

Brendan Kelly is Professor Emeritus at the University of Toronto. He is author of over 50 books including the recent "Intelligence, IQ & Perception", and "Intelligence: Where we Were, Where we Are & Where we’re Going." He holds two doctorate degrees: a Ph.D. in Mathematics (Number Theory) from U. of T. and an Ed.D. in Computer Applications from the Ontario Institute for Studies in Education, and he curates his site on Quora titled, “IQ & Intelligence.”

What is the difference between being smart, intelligent and knowledgeable )in terms of IQ?

The three concepts: smart, intelligent, and knowledgeable are strongly correlated although they have slightly different nuances. Smart Smartness–what the Ancient Greeks called phronesis–is the vaguest of the these concepts because its measure is purely subjective. Often, it’s associated with “street smarts” or the ability to navigate through human relationships with some degree of skill. In the …

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What is the self-Esteem of individuals of high IQ?

The self-esteem of high IQ individuals spans the full range from low self-esteem to high self-esteem. Many very high IQ people have low self-esteem because they compare themselves to those at the top of the IQ scale. The great physicist, Paul Ehrenfest, who collaborated with Einstein and found a contradiction in the equivalence principle, committed …

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Would the world be better off without high IQ mathematicians who invent stuff that complicates everything?

This question was posed by, Lara, a visitor to Quora to which I offered the following response. Lara, it all depends upon how you want to live. Modern science and technology stands on a foundation of mathematics developed by high IQ mathematicians. Among these high IQ mathematicians were those who developed the computer technology, including …

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What is the Evidence for and Against the claim that “Your environment has a Greater Impact on your Intelligence than Genetics”?

Historical Background In 1690, English philosopher John Locke stated that we all come into the world as intellectually “blank slates” (Tabula Rasa, in Latin) and acquire knowledge and intelligence that are written on these slates by our experiences. The political view underpinning Locke’s assertion was that if, indeed, we all enter the world as blank …

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What’s the difference between a highly intelligent person and a Genius?

High intelligence is probably a prerequisite for genius, especially the kind of genius that is expressed in abstract fields like mathematics, physics and the other sciences, because measures of intelligence are highly correlated with performance in these fields. In the arts, high intelligence may be less important than a special creativity, skill or knowledge. Shakespeare’s …

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Do people who are “naturally” intelligent and talented have to work hard at school/work like most people?

In answering this question, it may be helpful to compare and contrast the unfolding of intellectual talent with that of athletic talent. Comparison Those gifted with superior athletic ability, usually discover early in their lives that they are more agile than most, can run faster or jump higher, or have greater physical strength. As they …

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Why can people have different IQ levels even if they have the same genetics and upbringing?

In 2011, a large group of researchers published the results of a genome-wide analysis of 549,692 single nucleotide polymorphisms (SNPs) involving 3511 unrelated adults. (An SNP represents a difference in a single DNA building block, called a nucleotide.) (See: Davies, G., A. Tenesa, A. Payton, J. Yang, S.E. Harris, D. Liewald, et al. 2011. “Genome-wide …

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Is there a limit to human potential for learning/memory/intelligence?

The answer to this question carries bad news and good news. The bad news is that human cognitive abilities, including memory and intelligence are limited by many variables including time. The good news is that, within those limits there is room for a prodigious memory and remarkable intellectual achievements. What limits human cognitive abilities? Perhaps …

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