Problem is that nobody is assumed to survive such a FLASH.
Citation for this claim you keep making?
Who said nobody could have survived the FLASH!
I assume you have an actual source? Otherwise you would just be making things up, and you wouldn't do that, right?
I must have read it in US media. Isn't it clear from my web site? Or I heard it from somewhere?
There's nothing clear on your website, nor any evidence either. Just more like this, "I heard it from somewhere." Hardly compelling.
My website
http://heiwaco.com/chall.htm is quite clear, e.g. to show that dropping the 1/10th top A of any structure on the 9/10th bottom B of same structure results in top A crushing bottom B into dust 911 terrorist style.
When I drop A on B, A always bounces on B! There may be some minor damages at interface bottom A and top B, but that's all.
I have of course read and heard American media reports that top A always crushes bottom B by a gravity driven collapse from top down. The President of USA and many experts incl. FBI and CIA say the same thing: top A drops down on bottom B and destroys B. Top A becomes solid (!) during the drop and bottom B becomes soft (!!), etc, etc. Very strange.
It doesn't happen in Europe, Japan, Russia and China though.
And that's the Challenge!