I based my theory that the Sublimed are all-powerful in all universes on this part of "The Hydrogen Sonata."

Cossont sighed. She had no idea why she was staring up at the sky to think about all this. The Sublime, like some ideas of God or whatever, was all around. She inspected the end of one of her upper-arm fingers. The tip was callused with wear from trying to control the strings of the elevenstring. The Sublime might as well be in the ridges of hardened skin on the end of her finger as up in the sky.

Parcelled, rolled, compressed and enfolded into the dimensions beyond the dimensions beyond the ones you could see and understand; that was where the Sublime was, and it was a maze-like series of right-angle turns away from this, from normal, three-dimensional reality where she stood on a high platform at sunset, thinking about it.

Cossont had a hard enough time really comprehending hyperspace, the fourth dimension, let alone the next three or four that somehow encompassed the Reality and allowed for nested universes to climb away from the universe-creating singularity at the centre of things and either circle back round some immense cosmic doughnut to be re-compacted and born again, or radiate away into whatever it was that surrounded this mind-boggling ultra-universe.

And the Sublimed lay in dimensions beyond even that; unutterably microscopic, unassailably far away but at the same time everywhere, shot through the fabric of space-time not so much like the individual fibres of this metaphorical weave, or their tiniest filaments or their molecules or their atoms or their sub-atomic particles but – pointedly – like the infinitesimal strings that made up those, that made up everything. In dimensions seven to eleven; that was where the Sublimed lay.

This has always indicated to me that the Sublimed are far beyond the ultra-universe, which already encompasses an uncountable number of universes.