Good, good. So now that appendix D is dead what is the resolution. If appendix D is no longer valid, we can do whatever we want?

I think that we tend to be superficial. We are concentrating on one thing and we are ruined something else.
In my humble opinion only the 19/early 20 century engineers were impressive. We can not compete. These gentlemen were indeed engineers with a complete education. No offence to nobody, me included.
What I an stunned is that I am not a great engineer, however I did not expect the failure of the greatest.
We are humans after all.