The linked article is worth reading.
Apologies for sounding so dismissive, but after putting in a lot of study myself, I want to warn people here: HN is not a great place for discussing AI safety. As of this writing, I’ve found minimal value in the comments here.
A curious and truth-seeking reader should find better forums and sources. I recommend seeking out a structured introduction from experts. One could do worse than start with Robert Miles on YouTube. Dan Hendrycks has a nice online textbook too.
The examples you mentioned: youtube, and a textbook; are not places to discuss, they are assymmetrical ways to consume information, with little input from the reader's part. Have you ever had a meaningful discussion in youtube comments?