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OpenAI was working on advanced model so powerful it alarmed staff
(www.theguardian.com)
This is a most excellent place for technology news and articles.
Typos are very much a problem in programming. Variables can be set to the wrong value without the programmer noticing, you can call the wrong method (example RotateZ instead of RotateX), and in more advanced programming such as Java/C# reflection the IDE can't correct you.