Supernatural agents that exert natural effects are perfectly valid objects of scientific inquiry.
The most valuable aspect of his case is the stimulus it provides to the question, “If non-human intelligences exist, how would we detect them?”
The evidence seems pretty light, at least compared to what we normally expect for a design inference.
Loeb’s argument represents the most salient example of risky intelligent design reasoning in mainstream science.
Loeb describes his journey to a radical position on the strange interstellar visitor that’s been dubbed ‘Oumuamua.