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I once read that if the folds in the cerebral cortex were smoothed out it would cover a card table. That seemed quite unbelievable but it did make me wonder just how big the cortex would be if you ironed it out. I thought it might just about cover a family-sized pizza: not bad, but no card-table. I was astonished to realize that nobody seems to know the answer. A quick search yielded the following estimates for the smoothed out dimensions of the cerebral cortex of the human brain.An article in Bioscience in November 1987 by Julie Ann Miller claimed the cortex was a "quarter-metre square." That is napkin-sized, about ten inches by ten inches. Scientific American magazine in September 1992 upped the ante considerably with an estimated of 1 1/2 square metres; thats a square of brain forty inches on each side, getting close to the card-table estimate. A psychologist at the University of Toronto figured it would cover the floor of his living room (I haven't seen his living room), but the prize winning estimate so far is from the British magazine New Scientist's poster of the brain published in 1993 which claimed that the cerebral cortex, if flattened out, would cover a tennis court. How can there be such disagreement? How can so many experts not know how big the cortex is? I don't know, but I'm on the hunt for an expert who will say the cortex, when fully spread out, will cover a football field. A Canadian football field.

Jay Ingram
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Between 2000 and 2010, malaria mortality rates fell by 26 percent around the world. According to the latest World Health Organization estimates, there were about 219 million cases of malaria in 2010 and an estimated 660,000 deaths.

Tom Frieden
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A study led by the Harvard researcher Nicholas Christakis asked the doctors of almost five hundred terminally ill patients to estimate how long they thought their patient would survive, and then followed the patients. Sixty-three per cent of doctors overestimated survival time. Just seventeen per cent underestimated it. The average estimate was five hundred and thirty per cent too high. And, the better the doctors knew their patients, the more likely they were to err.

Atul Gawande, Being Mortal: Medicine and What Matters in the End
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My Electromagnetic Hypersensitivity (EHS) appeared to be caused by blood clots in the brain which had to be flushed out to cure it. The mystery was why I had the blood clots there, which recently was solved by the medical profession as I have a hole in my heart that creates them. It is estimated that 25% of the population have a hole in their heart and Atrial Septal Defect (ASD) may be one of the triggers for the onset of EHS in a person.

Steven Magee
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One must reach out and try to grasp this astonishing finesse, that the value of lif cannot be estimated.

Friedrich Nietzsche, Twilight of the Idols
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In 2012, an estimated 14,827 persons were murdered in the United States.-- Federal Bureau of Investigation

Gennaro F. Vito, Criminology: Theory, Research, and Policy
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The mind can store an estimated ioo trillion bits of information-compared with which a computer's mere billions are virtually amnesiac.

Sharon Begley
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Though they won't say, it has been estimated that Cargill and ADM together probably buy somewhere near a third of all the corn grown in America.

Michael Pollan, The Omnivore's Dilemma: A Natural History of Four Meals
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One of the surest signs of the estimated changes in the consciousness of the American proletariat is to be found in the character of the demands now being put forward by the leadership.

C. L. R. James
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No country in Europe has a larger proportion of men and women of immigrant descent, mainly from the African continent and mainly Muslim: an estimated six to seven million of them, or more than 10% of the population.

Timothy Garton Ash
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