Hey, nice! Thanks for the link.
Can’t recall what channel, but back when I had satellite I watched a documentary which preceded the supercomputer simulation, which included firing a high speed projectile into sand in a chamber.
It was that simulation which led to the air burst theory, even matching the butterfly pattern in the laboratory.
I can’t recall if they created airbursts, but it seems likely since I have a memory of a sand floor with little sticks laying out flattened in a butterfly pattern.
It was an excellent demonstration of good science.
Until I looked tonight, I’d never seen the Sandia simulations.