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Visualization is right at the heart of my own work too.
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I teach global health.
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And I know, having the data is not enough.
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I have to show it in ways people both enjoy, and understand.
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Now, I'm going to try something I've never done before:
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animating the data in real space,
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with a bit of technical assistance from the crew.
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So, here we go: first an axis for health.
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Life expectancy from 25 years to 75 years.
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And down here, an axis for wealth:
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Income per person: 400, 4,000, and 40,000 dollars.
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So down here, is poor and sick,
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and up here is rich and healthy.
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Now I'm going to show you the world 200 years ago,
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in 1810.
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Here come all the countries:
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Europe brown, Asia red, Middle East green, Africa South of the Sahara blue,
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and the Americas yellow.
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And the size of the country bubble shows the size of the population.
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And in 1810, it was pretty crowded down there, wasn't it?
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All countries were sick and poor,
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life expectancy was below 40 in all countries
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and only the UK and the Netherlands were slightly better off,
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but not much.
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And now, I start the world.
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The industrial revolution makes countries in Europe and elsewhere
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move away from the rest,
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but the colonized countries in Asia and Africa,
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they are stuck down there.
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And eventually, the Western countries get healthier and healthier.
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And now, we slow down to show the impact
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of the First World War
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and the Spanish flu epidemic. What a catastrophe!
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And now I speed up through the 1920s and the 1930s.
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And, in spite of the Great Depression,
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western countries forge on
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towards greater wealth and health.
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Japan and some others try to follow
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but most countries stay down here.
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Now, after the tragedies of the Second World War,
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we stop a bit to look at the world in 1948.
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1948 was a great year: the war was over,
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Sweden topped the medal table at the Winter Olympics,
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and I was born.
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But the differences between the countries of the world
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was wider than ever.
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The United States was in the front, Japan was catching up,
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Brazil was way behind,
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Iran was getting a little richer from oil but still had short lives.
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And the Asian giants:
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China, India, Pakistan, Bangladesh, and Indonesia,
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they were still poor and sick down here,
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but look what is about to happen!
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Here we go again!
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In my lifetime, former colonies gained independence,
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and then finally they started to get healthier,
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and healthier,
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and healthier.
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And in the 1970s, then countries in Asia and Latin America
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started to catch up with the Western countries:
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they became the emerging economies.
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Some in Africa follow,
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some Africans were stuck in civil wars,
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others hit by HIV.
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And now we can see the world today,
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in the most up-to-date statistics.
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Most people today live in the middle.
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But there are huge differences at the same time
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between the better off countries and the worse off countries
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and there are also huge inequalities within countries.
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These bubbles show country averages,
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but I can split them.
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Take China, I can split it into provinces.
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There goes Shanghai.
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It has the same wealth and health as Italy today.
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And there is the poor inland province Guizhou,
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it's like Pakistan
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and if I split it further
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the rural parts are like Ghana in Africa.
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And yet, despite the enormous disparages today,
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we have seen 200 years of remarkable progress.
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That huge historical gap
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between the West and the Rest is now closing.
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We have become an entirely new converging world,
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and I see a clear trend into the future,
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with aid, trade, green technology, and peace.
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It's fully possible that everyone can make it
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to the healthy-wealthy corner.
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Well, what you've just seen in the last few minutes
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is the story of 200 countries
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shown over 200 hundred years and beyond.
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It involved plotting 120,000 numbers.
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Pretty neat, eh?