Grand Challenges for Engineering

This blog post in Kurzweil AI reminded me of the Grand Challenges for Engineering.  It lists them specifically.   I remember reading about these years ago.  The post specifically makes the case that there is something wrong about the specifics of a number of them.  I agree their focus is poor, but I like the idea of knowing what we do not know.  If we even solve a few of these, or even parts of them, it is a big thing.