> wtf does that have to do with Curiosity program? All of these are 2+ decades old.
That’s 20 years of learning how to design and land things on mars. They wouldn’t have been able to build Curiosity without the past experiences. The Curiosity program itself started in 2002, just a couple years after the missions above.
What people say is that knowledge in the field is extremely hard to transfer, and easily lost. As an example, apparently we are completely unable to rebuild the Space Shuttle and Saturn rocket, even though technology is vastly more advanced today. Each vehicle really is a “program” including all its people and supply chain. This is also something SpaceX is trying to change by building actual production lines for their engines and bodies, not one-off builds.
No, that’s about “SpaceX learning from NASA’s past mistakes”. You also don’t seem to get the point that they were 2-year old programs when Curiosity started, so I’ll just leave it here.
Please don’t play these games on HN. A few of these threads will get your account flagged.
It was a single comment, how can the goalposts have moved “so many times”. You made no effort to engage on a reasonable discussion, and made a smart-ass comeback with something I did not say instead, it’s simply not an interesting conversation to be had.
That’s 20 years of learning how to design and land things on mars. They wouldn’t have been able to build Curiosity without the past experiences. The Curiosity program itself started in 2002, just a couple years after the missions above.
What people say is that knowledge in the field is extremely hard to transfer, and easily lost. As an example, apparently we are completely unable to rebuild the Space Shuttle and Saturn rocket, even though technology is vastly more advanced today. Each vehicle really is a “program” including all its people and supply chain. This is also something SpaceX is trying to change by building actual production lines for their engines and bodies, not one-off builds.