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The Rise and Fall of the Knowledge Worker
(jacobin.com)
This is a most excellent place for technology news and articles.
Here "replace" doesn't mean "being able to do the same job". It means you get fired. Automation in most fields never even tried to get close to a level of quality comparable to what a human can do, but it was enough to displace a majority of workers.
The author is a machine learning engineer, so he's perfectly aware of the limits of whatever is called AI. The point is to make those limits irrelevant by lowering the expected level of quality, as it happened with textile, food, and so on.