[lavelganzu]

Gwern was skeptical, & noted that an IQ of 75 [1] in this case study is very low. He additionally raises a few points, including that volume loss is not the same as neuron loss. He also predicts several deficits the case studies didn't report that he'd expect to see, including many small deficits in simple tasks adding up to large deficits in complex tasks.

[1] https://gwern.net/hydrocephalus#sn3

[12_throw_away]

Some basic context might help us understand your comment better. Who (or what) is a "Gwern"? Why is this person's writing on this topic of interest to your readers?

[jjmarr]

Gwern is a blogger who gets posted to Hacker News a lot.

Your comment is hilarious and I would like to use it whenever someone cites a blogger as authoritative.

[MisterTea]

It irks me when someone writes a post talking about a person as if everyone is supposed to know them. I look at it as low effort nerd signalling: "You don't know about Gwern? Pshaw."

[savanaly]

Only if you choose to take it that way. All the names were like that to me when I joined years ago, but I just looked them up, or not, as I went and now the discourse is almost always legible. As is usually the case if you want to be part of something interesting on the internet, lurk more is the first step.

[sdwr]

Gwern is the nerd's nerd