Could Life Be Older Than Earth?

The video explores the search for extraterrestrial life, focusing on the question of when life might have developed elsewhere. It discusses Earth's biological timeline, the doubling of genetic complexity, and the possibility that life could predate Earth. Theories by scientists like Alexei Sharov, Richard Gordon, and Avi Loeb are examined, suggesting that life could have originated in the early universe. The panspermia theory is also explored, proposing that life could spread naturally across the universe. The video concludes by questioning whether we are the first advanced life or part of a longer chain.

What is the traditional focus when searching for life beyond Earth?

• The presence of rogue planets

• The genetic complexity of life

• The location of habitable planets

• The timing of life's emergence

According to Sharov and Gordon, how often does genetic complexity double on Earth?

• Every 100 million years

• Every 376 million years

• Every 500 million years

• Every 1 billion years

What surprising conclusion did Sharov and Gordon reach about the first genetic ancestor of life?

• It appeared 1 billion years ago

• It existed before Earth formed

• It was brought by aliens

• It originated on rogue planets

What does the theory of panspermia suggest about the spread of life?

• Life is unique to Earth

• Life can spread naturally across the universe

• Life requires a star to form

• Life cannot exist on rogue planets

What is a potential implication of the panspermia theory for life on Earth?

• Life on Earth may be part of a larger cosmic phenomenon

• Life on Earth was brought by aliens

• Life on Earth is definitely unique

• Life on Earth is the first advanced life in the universe