The point I was making is that there is no such thing
If it were possible for life to survive interstellar travel we wouldn't be here. We would have long since been conquered by aliens. This is the solution to the Fermi Paradox.
Space/Science » in reply to But what about Directed Panspermia
If it were possible for life to survive interstellar travel we wouldn't be here. We would have long since been conquered by aliens. This is the solution to the Fermi Paradox.