Is there life on other planets?

Considering the number of stars in the universe, even if only a few of them have planets, it seems highly unlikely that Earth is the only planet supporting life.

However, it seems that all life on Earth evolved from a single ancestor, suggesting that abiogenesis is extremely rare. It is possibly so rare that it has only ever happened once anywhere?

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GlassDog · 41-45, M

I take two views:

One, that we can't predict the probability of life based on our own existence, because we already exist.

Two, I think it's highly likely that life has and will evolve elsewhere, that it will take billions of years to reach an advanced state (where it has the tools to destroy itself and its planet) and then just centuries to bring about the destruction. In that sense, 99.99999% of alien life is microbial or otherwise primitive and 0.000001% of alien life has technology akin to our own.