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> There is other live with almost 100% certainty in the universe. The number of galaxies, stars and planets across the whole universe is just too large for this not to be true.

So this argument gets repeated slot (because people like repeating things they hear) but it's completely fallacious.

Yes, the amount of planets is astronomically large. But it might be that the probability that life appears on a planet is astronomically small. If there are 10^50 planets in the universe, but the probability that life appears on a planet is 10^(-60), then we're probably the lucky one.

In other words, we don't know, but please stop repeating garbage.