7 Quotes by James Tagg


  • Author James Tagg
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    There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don’t know we don’t know.

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  • Author James Tagg
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    In life, telling a joke will make another person smile. This causes people to be happy and happy people release chemicals into their bloodstream which make them healthier. Happy people then tell jokes to others. This circular process improves the well-being of communities and helps bond people together.

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  • Author James Tagg
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    This is the outer surface of the brain where much of our thinking is done. Unfolded, this surface layer would cover the area of a football field.

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  • Author James Tagg
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    This proposal would mean our Universe is entirely deterministic, our lives the result of a gigantic computer program that we live within and form part of.

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  • Author James Tagg
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    The three years it takes to acquire ‘the knowledge’ and the subsequent years of navigating London’s complex streets give cabbies a 30% larger hippocampus than the average London resident.

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  • Author James Tagg
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    Another interesting fact is people become more intelligent as they age, gaining about one IQ point every ten years. Against the stereotype, it’s not all downhill after forty. There is hope for me.

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