Mostly agreed (my Dad was a Forester). However, many falls involve landing awkwardly, resulting in one’s head slamming into the surface struck, among other things. Does the NASA study take that into account? And what about fatalities due to long term effects? (I glanced at the paper, but am too tired to read 58 pages...)
Regardless, without immediate treatment, I think most anyone who falls off a “Trump” wall is going to be in a really bad way.
“Does the NASA study take that into account?” (landing awkwardly).
I don’t think so. The gist of the NASA paper was characterizing how humans can withstand a variety of physical forces, like acceleration, rotation and G-forces in turns. Only the one chart summarized (general) impacts at various speeds. Everyone speeds up at the same rate while falling (regardless of weight) so speed at impact is determined by the height of the fall (assuming no parachute or similar drag).
“I think most anyone who falls off a “Trump” wall is going to be in a really bad way.”
Bottom Line: Most people who fall from 30 feet will die from it. Almost all people who fall from 18 feet (the current large barriers) will survive.
These 30 foot walls really do take it to a new level. I am sure that the experience of climbing to that height will be a strong deterrent.