The SR-71 was developed using 20th century technology. It was envisioned with slide rules and paper. It wasn’t managed by millions of lines of software code. And it wasn’t powered by computer chips. All that changes with the SR-72.
Oh oh.
Oh oh.
Cause it sounds a bit like:
The SR-71 was built with solid engineering and hard work, this on the other hand is a pice of shit.
Look at the history of the development of the AGC as an example. And which part of the LEM gave Armstrong and Aldrin trouble during the descent? And that is a success story, in the end it mostly worked.
Complexity isn't your friend.