Given that we've identified 4,000 exoplanets orbiting other stars, it's rather ridiculous to believe that we're the only civilization in the universe.

The universe is approximately 13.8 billion years old, providing ample time for random events to lead to the emergence of life.

If we don't become a multi-planetary species, we risk facing calamities that could threaten humanity's existence on Earth.

Life in the universe could take forms vastly different from humans, potentially existing without technology or social structures, and may not prioritize expansion or conquest.

The future may see humanity colonizing other planets, driven by advancements in technology and a desire to explore beyond Earth.

The current situation on Earth is remarkable, as it is the first time in history that humanity has the capability to explore beyond our planet, and we've had a window of opportunity to extend life beyond Earth for a long time, but it may close soon, so we should act quickly.

We should think of becoming a multiplanetary species as a form of life insurance for humanity.

The multiverse theory suggests that there could be multiple Big Bangs happening all the time, creating new universes continuously.

If you believe the universe is vast and we are infinitesimally small, it will shape your philosophical outlook differently than if you think the Earth is the center of the universe.