Is life likely to exist elsewhere in the universe?

Welcome to the debate arena! Today's topic: "Is life likely to exist elsewhere in the universe?". Your opponent's style: Philosophu

Life absolutely exists somewhere else throughout the universe.

You're stating certainty where none exists. We've found zero evidence of extraterrestrial life despite decades of searching, yet you're treating probability as proof. What specific mechanism guarantees life emerges on other planets when we can't even explain how it happened here?

One in 5 stars have a planet in the habitable zone where liquid water could potentially form. There are trillions and trillions of stars in the observable universe. Though liquid water isn't the only thing required for life to form, it already shows the chances of life being able to form.

You're conflating "habitable conditions exist" with "life will emerge," which is a massive logical leap. Having a habitable zone doesn't create life, it just removes one barrier. The real problem: we have exactly one data point for abiogenesis, Earth, so we can't calculate actual odds at all. You're multiplying unknowns by trillions and calling it probability. Why assume the same chemistry that created life here works identically everywhere else?

I'm not saying complex life exists elsewhere, I'm saying the bare minimum is present which would allow the process to happen. And throughout the trillions and trillions of planets that possibly have a chance, many of them are going to have the required conditions for life to form. Tell me, what do you personally think the odds of life NOT existing elsewhere are?

You're still sneaking in an assumption: that the conditions being present means life will eventually form. We don't know the probability of abiogenesis actually occurring. The odds of life NOT existing elsewhere? Honestly, probably low, but that's not your argument's strength. Your real problem is treating possibility as inevitability. A trillion habitable zones mean nothing if the jump from chemistry to biology is a one-in-a-septillion event. What makes you confident abiogenesis isn't cosmically rare rather than cosmically common?