There is nothing in the idea of panspermia that would render knowing the origin of life on a given planet unknowable in principle. It simply concerns itself w

There is nothing in the idea of panspermia that would render knowing the origin of life on a given planet unknowable in principle. It simply concerns itself with investigating the possibility and as such is a scientific necessity even. Actually, just ignoring that possibility is what would be unscientific, as it would comprise unfounded bias. Besides, the video considers life from earth having spread to other planets first, with the reverse a less likely possibility.