confidence level: I am a physicist, not a biologist, so don’t take this the account of a domain level expert. But this is really basic stuff, and is very easy to verify. Recently I encountered a scientific claim about biology, made by Eliezer Yudkowsky. I searched around for the source of the claim, and found that he has been repeating versions of the claim for over a decade and a half, including in “the sequences” and his TED talk. In recent years, this claim has primarily been used as an argument for why an AGI attack would be extremely deadly. I believe this claim is factually incorrect.
He also writes: “The entire human body, faced with a strong impact like being gored by a rhinocerous horn, will fail at its weakest point, not its strongest point.”
If a rhino comes at Yud, he can use his mighty cranium, which is not his weakest spot, to defend his weak meat parts. Since the rhino horn only impacts his head and not his weak points, his body can not fail, and thus he lives.
Reminds me of Cyrano de Bergerac’s Travel to the Sun, where the protagonist encounters a thin chain carrying a great load. Since all links of the chain were equally strong, it couldn’t break as chains always break in there weakest link. De Bergerac had the excuse of writing his sci fi in the 17th century (he also features some pre-Newtonian physics), Yud lacks such an excuse.
There are too many comments in here going for the stringy lean detail and not pointing out magnificent conceptual errors like this