Collisions? Large enough collisions eject large amounts of rocks into space. A good fraction of rocks ejected from earth would have some viable single cell life

Collisions? Large enough collisions eject large amounts of rocks into space. A good fraction of rocks ejected from earth would have some viable single cell life inside it, all you need are some cavities in them that don’t reach insane temperatures during this process, which is very possible for big enough rocks. Remember that while you deal with insane numbers on the space side, viz. it’s emptiness, the number of planets etc., you’re meeting an insane adversary with biology as well. The number of cells in a single piece of sand in this planet is insane. The number of particles we might eject if there’s a catastrophic event from earth is insane. Anyone who worked on biology would know how hard it is to keep things truly sterile. I’m just extending it to outside space as well. As for the conditions being too specific, while it’s true, I don’t see many outrageous combinations you can commonly observe in planets in the galaxy so I’m not sure if that’s a big deal breaker.