Thanks for the thoughtful response! I think you do a good job identifying the downsides of directed panspermia. However, in my description of the problem, I want to draw your attention to two claims drawn from Ord’s broader argument.
First, the premise that there is roughly 1⁄6 probability humanity does not successfully navigate through The Precipice and reach the Long Reflection. Second, the fact that for all we know we might be the universe’s only chance at intelligently flourishing.
My question is whether there is an implication here that directed panspermia is a warranted biotic hedge during The Precipice phase, perhaps prepared now and only acted on if existential catastrophe odds increase. If we make it to The Long Reflection, I’m in total agreement that we do not rapidly engage in directed panspermia. However, for the sake of increasing the universe’s chance of having some intelligent flourishing, perhaps a biotic hedge should at least be prepare now, to be executed when things look especially dire. But at what point would it be justified?
I think this reasoning is exactly the same as the utilitarian longtermist argument that we should invest more resources now addressing x risk, especially Parfit’s argument for the value of potential future persons.
Assume three cases: A. All life in the universe is ended because weapon X is deployed on earth. B. All life on earth is ended by weapon X but life is preserved in the universe because of earth’s directed panspermia. C. Earth originating life makes it through the Precipice and flourishes in the cosmic endowment for billions of years.
It seems C > B > A, with the difference between A and B greater than the difference between B and C.
A neglected case above is where weapon X destroys life on earth, earth engages in directed panspermia, but there was already life in the universe unbeknownst to earth. I think we agree that B is superior to this case, and therefore the difference between B and A is greater. The question is does the difference between this case and C surpass that between A and B. Call it D. Is D so much worse than C that a preferred loss is from B to A? I don’t think so.
So I guess the implied position would be that we should prepare a biotic hedge in case things get especially dire, and invest more in SETI type searches. If we know that life exists elsewhere in the universe, we do not need to deploy the biotic hedge?
Based on NASA’s extensive planetary protection efforts to prevent interplanetary contamination of the explored worlds, I think it is plausible now. https://en.m.wikipedia.org/wiki/Planetary_protection