I think the GP's point was that we humans consider ourselves intelligent, but we evolved and clearly weren't designed to be intelligent. One could even say that our intelligence was... "emergent".
Furthermore, our history is full of instances where we invented something that a) we didn't understand and b) had uses way beyond what we intended. As a recent example, GLP-1 was intended for glucouse regulation but is now basically a wonder drug that can treat a bunch of issues ranging from obesity to addiction, inflammation, dementia, fertility and more.
Given we don't know how to define intelligence, I think it's fine to apply some "duck typing" here.
Furthermore, our history is full of instances where we invented something that a) we didn't understand and b) had uses way beyond what we intended. As a recent example, GLP-1 was intended for glucouse regulation but is now basically a wonder drug that can treat a bunch of issues ranging from obesity to addiction, inflammation, dementia, fertility and more.
Given we don't know how to define intelligence, I think it's fine to apply some "duck typing" here.