No. No they are not.
They are comprised of a core of pure bullshitonium, wrapped in about two hundred layers of bullshit, then dunked in a vat of liquid bullshit before being handed out.
They are space whale magic in every single way. "Sufficiently advanced technology" works solely as an aesthetic explanation; in every way that could possibly matter, you're not going to be able to justify them as being actual sufficiently advanced technology.
Let me expound upon this with some examples.
Chevalier's power to merge similar objects together and create a composite with exactly the traits he desires, besides being a Correspondence/Space 4 rote in both Mage games, is completely unphysical. There is no physical mechanism for this, proposed or otherwise. There is no quantum effect that is even similar if you squint really hard.
Then we have the powers of Coil and Dinah. Despite what you might think, word of god is that both of these are precognition powers performed by computers the size of a planet. Okay, simulating a planet with sufficient detail to predict the future is a
transcomputational problem, so that makes sense. But there's a problem here. Coil can perfectly predict the answers Dinah will give, in blatant violation of the
halting problem, which states that no computer of equivalent mathematical complexity can determine the answer to an algorithm faster than running it, and this is true for the entire
arithmetical hierarchy. The only side effect is that Dinah's numbers change, meaning that
her shard is capable of predicting the actions of an actor that has full access to an
even more powerful computer!
This is just scratching the surface here. I'm specifically ignoring things that can be explained with soft scifi staples that have no basis in real life, like antigravity, force fields, parallel universe travel, et al, and I could still list more examples.
I sense a Doyalist /watsonian miscommunication here. Because watsonianly speaking, illhousen is correct. Doyalistly, space magic doesn't even begin to cover it.
He's blatantly wrong on both accounts. Worm powers are physics in precisely the same sense that Star Trek technobabble is science, i.e., none at all.