How old is the universe according to the video?

• 13.8 billion years

• 36 billion years

• 4.5 billion years

• 300,000 years

What is the Fermi Paradox concerned with?

• The lack of evidence for alien life despite high probability

• The age of the universe

• The origin of human life

• The expansion of the universe

What does the Zoo Hypothesis suggest about alien civilizations?

• They are extinct

• They are observing us without interference

• They are trying to communicate with us

• They are located in another galaxy

According to the Caltech study, where is life most likely to exist in the Milky Way?

• Near the galactic center

• On the edge of the galaxy

• In the Andromeda galaxy

• On Earth

What is the main idea behind panspermia?

• Life is unique to Earth

• Life is only possible in the Milky Way

• Life is spread across the universe by natural or deliberate means

• Life originated on Earth and spread to other planets

What does directed panspermia propose?

• Life is spread by natural events

• Life is deliberately spread by advanced alien species

• Life is confined to Earth

• Life is a result of random chance

What does the Caltech study suggest about the timing of human emergence in the galaxy?

• Humans emerged at the same time as other civilizations

• Humans emerged too late

• Humans emerged too early

• Humans emerged at the optimal time for life

What is a major argument against the idea that humans originated elsewhere and were seeded on Earth?

• Earth is the center of the universe

• Aliens have already visited Earth

• There is no scientific evidence

• Humans are the only intelligent life

What does the video suggest about the likelihood of alien life existing?

• It has already been proven

• It is highly unlikely

• It is impossible

• It is statistically probable

What is the main takeaway regarding human significance in the universe?

• Humans are the only life form

• Humans are insignificant in the grand scheme

• Humans are the first intelligent life

• Humans are the most advanced species