Autoplay
Autocomplete
Previous Lesson
Complete and Continue
Are we alone in the Universe?
The Fermi Paradox
WELCOME (2:24)
THE PDF TEXT - ARE WE ALONE IN THE UNIVERSE?
VOCABULARY LIST
INTRODUCTION (2:50)
DISCLAIMER (2:02)
HOW DOES THE NIGHT SKY MAKE YOU FEEL? (1:38)
DO YOU THINK INTELLIGENT LIFE EXISTS BEYOND EARTH? (0:44)
THE NIGHT SKY (4:18)
HOW MANY STARS ARE THERE IN THE UNIVERSE? (3:12)
HOW MANY OF THOSE STARS ARE LIKE OUR SUN? (2:03)
HOW MANY EARTH-LIKE PLANETS ARE THERE? (4:29)
HOW MUCH INTELLIGENT LIFE IS OUT THERE? (4:24)
SETI (3:10)
THE KARDASHEV SCALE (7:15)
THE FERMI PARADOX (3:36)
THE GREAT FILTER (13:06)
INTELLIGENT LIFE DOES EXIST (3:21)
POSSIBILITY 1: THEY HAVE ALREADY VISITED IN THE PAST (4:30)
POSSIBILITY 2: THE GALAXY IS ALREADY COLONIZED (4:38)
POSSIBILITY 3: UTOPIAN ALIEN CIVILIZATIONS (5:34)
POSSIBILITY 4: SHUT UP FOOL! (7:11)
POSSIBILITY 5: SCARY SUPER-PREDATOR CIVILIZATIONS (4:30)
POSSIBILITY 6: WALKIE-TALKIE TECHNOLOGY (3:44)
POSSIBILITY 7: THE GOVERNMENT IS COVERING UP ALIEN ACTIVITY (4:43)
POSSIBILITY 8: THE ZOO HYPOTHESIS (4:36)
POSSIBILITY 9: HIGHER CIVILIZATIONS ARE HERE (8:10)
POSSIBILITY 10: COULD WE BE WRONG ABOUT REALITY? (8:45)
THANK YOU (1:47)
POSSIBILITY 7: THE GOVERNMENT IS COVERING UP ALIEN ACTIVITY
Content locked
If you're already signed up or subscribed,
you'll need to login
.
Sign up or subscribe to unlock content