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66 million years ago,
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the worst day in the history of life was dawning.
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The killer came from the south,
at a sharp angle, hurtling toward Earth
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at three times the speed of a bullet.
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The impact carried more explosive power
than 10 billion atomic bombs.
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For over 20 minutes,
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the entire Earth became
hotter than a boiling oven,
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as molten debris rained down,
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igniting global wildfires.
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The resulting earthquakes
are thought to have triggered
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volcanic eruptions around the globe,
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blanketing western India, in lava.
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The final blow came as giant clouds
of dust shrouded the Earth,
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starving life of sunlight for up to 15 years.
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Charred landscapes turned to frozen ones.
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In the aftermath, 75% of
all species went extinct.
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But a lucky few somehow made it through.
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Crocodiles, which can go months
without food, took to the water,
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and were mostly unscathed,
feeding off dead matter that washed down river.
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Birds with teeth went extinct,
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but those with beaks used them as multi tools
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to access hardy food sources like seeds.
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Most critically,
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our tiny shrew like mammal ancestors
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survived by doing what they did best:
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hiding out in the safety of the shadows.
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How would we fare compared to them
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if we faced the same apocalypse?
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What if the same asteroid
struck again in the same place
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at the same angle?
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Would humans cling on
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or go the way of the dinosaurs?
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In a flash, central America and ithe southern United States
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would be vaporized by the blast.
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A hundred million people
would perish within seconds.
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The sound of the impact
alone would be enough
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to kill anyone standing
1500 kilometers away.
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Within minutes,
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magnitude 9 to 11 earthquakes would ripple across the Earth,
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stronger than any in recorded history.
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Giant 100 meter tall tsunamis
would scour the coasts
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and flood up to a hundred
kilometers inland.
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Enough to drown over 3 billion people.
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The bulk of debris would
fall on the United States,
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putting hundreds of millions more at risk.
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For anyone far enough away,
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the quaking would send a violent message:
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to get underground before
the molten rains came.
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There are millions of fallout shelters
scattered around the world,
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including hundreds of thousands in Switzerland alone.
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And underground cities around the world
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like Derinkuyu in Turkey, and Nushabad in Iran,
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could provide safe haven for millions.
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Between these and other makeshift
shelters like mines and subways,
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it's conceivable that billions of people
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could survive the initial effects of the blast,
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but even assuming they weren't destroyed
in the violent earthquakes,
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few of these shelters are designed to be
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self-sufficient for periods of months or years.
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Fiery debris and acid rain
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would fall from the sky for years after the impact,
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making any open air activity
possibly deadly for long periods.
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Only a small number of high-tech doomsday bunkers
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built by world governments in the
ultra rich would offer long-term protection.
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The Raven Rock Mountain Complex in Pennsylvania,
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maintained by the US government,
is said to contain three story buildings
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and its own water reservoirs,
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with enough space to house thousands of people.
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But the exact contents
are unknown to the public.
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Other major nations are believed
to have similar contingency bunkers,
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making it possible that major world
governments would continue to exist,
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at least in the short term.
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The ultra-rich have recently taken up citizenship
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in New Zealand, which is geographically
ideal for self-sufficiency,
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and numerous luxury bunkers have
been constructed across the country,
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some with years of provisions.
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But the biggest challenge to survival
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would be the long game.
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The all consuming dust
cloud would cause crops
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to fail worldwide.
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Food stocks would eventually deplete,
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and fresh water sources would
become contaminated by poison rain.
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Famine would become the number one killer
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with a potential death toll in the billions.
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But even in this harsh
post-impact environment,
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we could find ways to adapt.
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Some could potentially
survive by harvesting fungi
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which don't rely directly on sunlight to survive,
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and proliferate wildly after deadly fires.
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Over time, the climate would
swing from cold to hot,
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as excess carbon dioxide ejected
from the blast trapped heat.
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With ingenuity and grit,
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small groups could live on, scraping by
through a mixture of rationing,
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scavenging, and attempts at makeshift agriculture.
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But human existence would be
a shadow of what it once was.
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Without any advanced warning,
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our hopes would be grim.
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But what if we knew it was coming?
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How would we prepare for the unimaginable?
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In September, 2022,
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NASA's DART satellite slammed into
a tiny asteroid, 11 million kilometers away.
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The impact was a massive success
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slowing the asteroid's orbit by 32 minutes.
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Both the Hubble and James Webb space telescopes
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snapped images of the resulting plume of debris,
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photo evidence that we now have the power
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to save our planet from catastrophe.
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But not all space rocks are created equal.
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The tiny asteroid hit by NASA
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was only a fraction of the size of the dinosaur killer.
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This asteroid was over
10 kilometers across.
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Larger than Mount Everest.
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Deflecting a monster like
this is a much bigger problem.
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Impacting them runs the risk
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of breaking the asteroid into smaller,
equally deadly pieces.
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High explosives could still do the trick
if detonated next to the asteroid,
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knocking it into a new orbit.
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But more surgical methods
might be a safer bet.
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Some have proposed using lasers
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to push an object into a new
trajectory and out of harm's way.
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Others have suggested
attaching large solar sails
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to drag the asteroid
into a different orbit.
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Thankfully, astronomers have now mapped
all asteroids larger than one kilometer
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inside our solar system,
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and none appear poised to it Earth anytime soon.
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And anything coming from the asteroid belt
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would give us years to prepare a defense.
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But what if we missed one?
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We have no catalog of large
asteroids that could come from
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outside the solar system.
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They could arrive suddenly at high speeds
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with very little warning.
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Whether we had a few months or many years
to prepare a deflection mission,
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we would need a backup plan.
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Our first move would be to evacuate
the Yucatan Peninsula and surrounding areas,
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sparing millions of lives from the blast.
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We could then build a series of
self-sustaining armored habitats,
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built to withstand raining meteorites
and severe earthquakes.
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Mine shafts and deep caves
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could be repurposed into underground cities,
powered by nuclear reactors,
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sustaining vertical farms.
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Places like Iceland could
provide abundant geothermal heat,
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a renewable energy source,
not dependent on the sun,
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which could supply power
until sunlight returned.
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There are over 20,000 kilometers
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of subway tunnels around the world.
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These could be transformed
into a network of tunnel cities
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that could theoretically
house over a billion people.
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A trove of seeds, livestock, data,
and natural resources
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would be critical to preserve.
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Fortified vaults could be
placed around the world,
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patiently guarding their treasures,
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awaiting the uncertain
return of their creators.
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But the most important
resource to save would be water.
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To preserve it from
acid rain contamination,
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deep water silos could be dug to house
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vast reservoirs lined with
acid resistant materials
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then sealed to protect from the elements.
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To grow ample food with limited resources,
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humans could turn to a strange
new type of agriculture:
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Algae farming.
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While not exactly appetizing,
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Algae would be the ideal emergency food source.
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It's highly efficient, can
thrive in low light conditions,
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and can be farmed vertically
with minimal land usage.
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With multiple years to prepare,
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there would be one last
Hail Mary solution to try:
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To leave Earth behind.
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From a small colony on the moon,
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a chosen few could watch
disaster strike from a safe distance,
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unsure if they would ever return.
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In 2018, a former NASA engineer grew
concerned about information overload
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and distortions in the information landscape.
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So she founded Ground News:
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A platform that gathers related articles
from around the world in one place,
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so readers can compare coverage with context about the source of the information.
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The Blind Spot Feed puts
a spotlight on stories
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that are disproportionately covered by
one side of the political spectrum,
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giving readers information that
could expand their worldview
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and help them understand
someone else's media reality.
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The platform empowers readers
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to think critically about
the information we consume
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and take control over our relationship
to the news and to each other.
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(Subtitles created and timed by Anonymous)
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