>>12144432>it only takes 4 billion years for life to evolve to be intelligentThat 4 billion years is 95% of the Earth's habitability. In 500 milliom years, the Sun will heat up and kill all life on Earth. We almost didn't fucking make it.
And a planet even getting 4 billion years of habitability is EXTREMELY rare.
>life appeared quick, in less than 600 million yearsYou're falling victim to survivorship bias.
If abiogenesis didn't occur that quickly, then there wouldn't have been enough time for life to evolve into intelligent life and we wouldn't be here to talk about how Late abiogenesis occured.
Intelligent life shouldn't be surprised that abiogenesis occurred very quickly on its planet.
>Earth is normalNo. Look up the Rare Earth Hypothesis.
>intelligence is an advantageNo. A species is only as intelligent as its environment requires it to be. Dolphins/Orcas are the smartest non-human species because their environment and history is very complex. But species that just live in a static environment actually degenerate in intelligence over time because intelligence costs energy, development time, and carries risks.
For ex: ethnicities that have lived in static environments (tropical jungles) tend to be dumber than ethnicities that have lived in harsh ever-changing environments (winters).
>>12144617Actually, even if A solar system has multiple cases of abiogenesis, that in no way says anything about how common fecund solar systems are in the universe.
But yes, life most likely started on Mars because it cooled first, then later on was launched to the then-now-cooled Earth and Venus.
The great filters are definitely pre-tech civilzation. For ex: if there was an alien civilization already in the Milky Way, then they would have already colonized Earth before we evolved and prevented us from evolving.
An intelligent species shouldn't be surprised to find itself in a quiet area of the cosmos.
For more, see:
>>12140943 
