So you worry about things that we can infer exist now, but not those that we can infer could exist?
I am more used to seeing people dismiss AI by denying the validity of inference than by citing it, so you might want to elaborate on your perspective.
We know (1) comets exist, (2) they can impact planets, and (3) they leave debris trails which show up as meteor showers when these particles intersect with Earth's atmosphere, like the February Eta Draconis meteor shower which has gotten astronomers' attention.
By contrast, AI's of the sort discussed here still exist in the realm of science fiction.
From Mike Darwn's Chronopause, an essay titled "Would You Like Another Plate of This?", discussing people's attitudes to life:
Conclusion, graphs, and references in article. As usual, I recommend reading Chronopause.com as Darwin has many good articles; to quickly link a few: