User blog comment:GrandMethuselah67/Lore Sheet: The People's Imperium of Neohumanity/@comment-4867780-20150810003841/@comment-26322734-20150810023637

Femtotech is by no means infinitely small. It's just a quadrillionth of a meter; a femtometer is larger than a zeptometer by an order of magnetude, I think. And by the way, I think you're not envisioning it the way they're doing it. Instead of it just being one quantum void, it'd be quadrillions throughout the galaxy, each coming together to form one massive structure. Like an assembly line except smaller, busier, and greater than trillions of things are being done at once. But yeah, Kazzack's galactic hive-mind is a factor here, since the U.R.H. is copying his engineering methods and adding their own touch to it.

You got it. It's sci-fi. But for the record, you saw the video about how empty space isn't empty. At least, I assume you did. Cat did send it. Point is, it isn't magic. It's taking what's already there, which is extremely small, but it's still there. I actually got the idea, ironically, from an article stating how it could end the world (the possibility of an infinite energy chain reaction, thus destroying the universe). If I can find it, I'll paste it here.