[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,How old is the Earth?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Well, by counting the number of isotopes
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in a sample of rock
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that's undergone radioactive decay,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,geologists have estimated the Earth's birthday,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,when it first formed from a solar nebula,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to be 4.6 billion years ago.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,But just how long is that really?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Here's some analogies
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that might help you understand.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,For example, let's imagine the entire history of Earth
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,until the present day
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,as a single calendar year.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,On January 1st, the Earth begins to form.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,By March 3rd, there's the first evidence
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,of single-celled bacteria.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Life remains amazingly unicellular until November 11th
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,when the first multicellular organisms,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,known as the Ediacaran fauna, come along.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Shortly thereafter, on November 16th at 6:08 p.m.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is the Cambrian Explosion of life,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,a major milestone,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,when all of the modern phyla started to appear.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,On December 10th at 1:26 p.m.,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the dinosaurs first evolve
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,but are wiped out by an asteroid
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,just two weeks later.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,On December 31st, the mighty Roman empire
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,rises and falls in just under four seconds.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And Columbus sets sail
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,for what he thinks is India
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,at three seconds to midnight.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,If you try to write the history of the Earth
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,using just one page per year,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,your book would be 145 miles thick,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,more than half the distance
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to the international space station.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The story of the 3.2 million year-old
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Australopithecine fossil known as Lucy
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,would be found on the 144th mile,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,just over 500 feet from the end of the book.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The United States of America's Declaration of Independence
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,would be signed in the last half-inch.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Or if we compared geologic time
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to a woman stretching her arms
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to a span of six feet,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the simple act of filing her nails
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,would wipe away all of recorded human history.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Finally, let's imagine the history of the Earth
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,as your life --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,from the moment you're born
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to your first day of high school.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Your first word,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,first time sitting up,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and first time walking
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,would all take place while life on Earth
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,was comprised of single-celled organisms.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In fact, the first multicellular organism
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,wouldn't evolve until you were 12 years old
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and starting 7th grade,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,right around the time
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,your science teacher is telling the class
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,how fossils were formed.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The dinosaurs don't appear
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,until three months into 8th grade
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and are soon wiped out right around spring break.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Three days before 9th grade begins,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,when you realize summer is over
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you need new school supplies,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Lucy, the Australopithecine, is walking around Africa.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,As you finish breakfast
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and head outside to catch your bus
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,44 minutes before school,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the Neanderthals are going extinct throughout Europe.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The most recent glacial period
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,ends as your bus drops you off
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,16 minutes before class.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Columbus sets sail 50 seconds before class
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,as you're still trying to find the right classroom.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The Declaration of Independence is signed
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,28 seconds later
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,as you look for an empty seat.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And you were born 1.3 seconds before the bell rings.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So, you see, the Earth is extremely,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,unbelievably old
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,compared to us humans
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,with the fossil record
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,hiding incredible stories to tell us about the past
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and possibly the future as well.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,But in the short time we've been here,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,we've learned so much
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and will surely learn more
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,over the next decades and centuries,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,near moments in geological time.