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So Far, AI Is a Money Pit That Isn't Paying Off
(gizmodo.com)
This is a most excellent place for technology news and articles.
pretty much all improvements aren't "better tech", but just "bigger tech". Reducing their footprint is an unsolved problem (just like it has always been with neural networks, for decades)
Optimization is a problem that cannot be "solved" by definition, but a lot of work is being done on it with some degree of success