Considering that NASA evidently already know how to land astronauts on the Moon (thanks to Apollo), what is the point of the Artemis program? For example, the just-launched Artemis 1 is 1) uncrewed and 2) not landing on the Moon, which are both hurdles that the Apollo missions surmounted. Did NASA regress? If not, what happened to the knowledge gained from Apollo? Was it lost, or is there some other reason why NASA is apparently not making use of it?
I'm surprisingly unable to Google for an answer to this question. I'd have thought it's a FAQ.