7

Portia reached Earth through Bruks, as you say, through deliberate infection by the Bicamerals. It reached the Icarus array through, essentially, a hack. We do get a bit of information on Portia's arrival on Icarus in the text itelf: (...) Which implies that it’s optimized for telematter dispersal—although if it isn’t using our native protocols, how ...


5

I checked the old Rifters website and found no mention of maximum depth, but there is information on the depth and pressure of the Channer Vent. You're three kilometers below the surface of the Pacific Ocean. From the page about the Rifters themselves: Here's the problem: the same conditions that make hydrothermal vents such hotbeds of geothermal ...


3

It's not spelled out anywhere, but since the Rifters' bodies have been modified to equalize internal and external pressure without killing them, the implication is that they have no maximum depth. I've read the first two books and don't recall any maximum depth ever being mentioned for the Rifters. This paragraph from Maelstrom is the only cite I can find ...


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