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A comment on Ambitious Artificial Intelligence Project Operating In Near-Secrecy For 30 Years. Parent comment
One datapoint: http://archive.wired.com/wired/archive/2.04/cyc-o.html
So for more than 20 years.
One datapoint: http://archive.wired.com/wired/archive/2.04/cyc-o.html
So for more than 20 years.