Unfortunately, the player-controlled event "NPCs" aren't a good source of information. They're just like the rest of us, limited in their knowledge.
From the limited bits I've seen, at least in the Zorai writings (very hard to follow sometimes), the only comparison I've been able to come up with is that of Matter (everything we know) to Antimatter. When the two meet, both are destroyed. Except, the Goo continues and basically consumes the non-Goo.
The bit you quoted, Marelli, indicates that the Goo changes things (which we knew). The Silan Kami missions discuss that creatures, once infected, can't be "re-joined to Ma-Duk" or something similar. Since Kami appear to be spirits of the planet itself, that could mean something as simple as infected organisms won't decay and biodegrade, thus completing the circle of life. Anything the Goo touches becomes incompatible with the circle of life on Atys, somehow.
(Ever feel like you're on the verge of figuring something out? Sometimes it feels like I can almost reach out and touch the answer, and then it vanishes. Rather frustrating)
From the limited bits I've seen, at least in the Zorai writings (very hard to follow sometimes), the only comparison I've been able to come up with is that of Matter (everything we know) to Antimatter. When the two meet, both are destroyed. Except, the Goo continues and basically consumes the non-Goo.
The bit you quoted, Marelli, indicates that the Goo changes things (which we knew). The Silan Kami missions discuss that creatures, once infected, can't be "re-joined to Ma-Duk" or something similar. Since Kami appear to be spirits of the planet itself, that could mean something as simple as infected organisms won't decay and biodegrade, thus completing the circle of life. Anything the Goo touches becomes incompatible with the circle of life on Atys, somehow.
(Ever feel like you're on the verge of figuring something out? Sometimes it feels like I can almost reach out and touch the answer, and then it vanishes. Rather frustrating)