Ah, but QuidamSoul, you're assuming that the anthropic perceptual model necessitating the cognition of stimuli is the only experiential consciousness. This violates the mathematical physics principle known as the Anthropic Principle. Talbot (not Electric Universe Theory's Talbot, a separate mathemetician rather, I forget his first name.), but Talbot states that the physical and cosmic dynamics that govern the fundamental constants (like the G, the force of Gravity, and the E=Mc^2) may not necessarily be "constant" homogenously thoughout the cosmos, owing generously to the nonuniform distribution of matter and energy dictating the forces of special relativity.
Therefore, alien lifeforms may very well be so completely foreign in not only biochemical makeup and dimensional physiology, but they might even take on entirely radical perceptual models (similar to how the liquid crystal lattice structure knwon as DNA to humans can actively process and store information, which is how AI researchers speculate that machines may be capable of posessing "Life", because the processing and reception of informationis technically all that's necessary to cognition and hence Life [even if inorganic].).
As for ZFC, you're completely right, I mistook the name ha; but perhaps the speculated microbial life is characteristic of the extremophile organisms near the core vents of the deep ocean or believed to be able to exist on hospitable comet's ice environments? That is, of course, if, as I was just talking about, silica-based life doesn't function similarly to computers, meaning irrelevant of stimuli other than information.