i've been doing a lot of thinking about this, especially upon reading "Transformers: Exodus" and i think i can buy it. it's just that i would prefer Primus to be an entirely separate entity rather than being Cybertron itself. it seems to me that the Cybertronians are energy beings, so they would naturally be "energon-based" organisms, which i think is another interesting angle to the origins of Cybertronians. i still yet to buy the Well of Allsparks angle as to how the Cybertronians are born. (there is only one source from which the Cybertronians are born??). as for the Quintessons, i would go for the back story that they invaded Cybertron and they were lying when they kept insisting that they made the Cybertronians.