I read that because the moon missions were 50+ years ago and we used contractors for a lot of the engineering, much of the expertise was lost. Companies didn’t keep records. NASA has the specs they sent them, but HOW they were made has been lost. The engineers that pulled this off are dead or in nursing homes. They waited too long to go back and too much has been forgotten.
At least to do the same way we did then.
A Lost Generation (of genius engineers).
There should be medals, and museums.
Best we can do is visit Kennedy Space Center. Worth every entrance ticket dollar X10. Plan to arrive at opening and stay until closing, and you still can’t see it all. My highest “FL tourist destination” recommendation without a doubt.
We shouldn't try to do it the same way we did in the 1960s. We have a different industrial base, and in spite of the jackasses in Congress, we've learned a lot about rocketry since then.
Back in 2013 or so, NASA had a team look into what it would take to build an F1 class engine using then current technology. The team studied the specs for the original F1, read the design documents, examined the blueprints, studied actual examples, and then set to work. They designed an engine they called F1-B, which would have been simpler to build, lighter, and higher in thrust than the original.
Congress killed it.
Instead, Congress mandated that NASA reuse Shuttle parts, rather than building something new. It would be cheaper, you see ... except that it isn't and no sane person would expect it to be. The result is this technological abortion called "SLS".
People are quick to blame NASA ... NASA only does what Congress mandates it to do. Blame Congress ... and the people who put congressthings in Congress.