The thread title appears to imply some kind of perceived competition between the two phenomena, only one of which involves composition, a piano and Jonathan Powell; as such, it seems pretty daft to me, especially since there is no conceivable connection between them.
Ah, well, it takes all sorts, one may suppose.
As for Sorabji's "Primordial Bollocks", I am unqualified to comment, since I have never seen them.
That said, Jonathan Powell's recording of
Sequentia Cyclica reached position #2 in the Amazon hot picks list earlier today and has since dropped only to position #5 (see
https://www.amazon.co.uk/gp/new-releases/music/697386 ), which presumably counts for something; I didn't notice "Microwave Background Radiation Hiss" anywhere on that list, which likewise speaks for itself.
Best,
Alistair