There is no God , we are the ones responsible for our actionsBit of a nonsequitur . Very few people believe that the existence of god means you aren ' t response for your actions . <| sep |> It ' s just a house number . In snowstorm anything smaller will be impossible to tell apart . <| sep |> Cracked is a comedy site <| sep |> I don ' t want to overstep any boundaries here , but I would really like Detroit to win this game . <| sep |> My headcanon was always basically that the Goa ' uld were dying out due to a lack of Unas hosts andor frequent occurrences of the Goa ' uldUnas blending failing . It was mentioned that without Jaffa , the failure rate of a Goa ' uld taking over a human was around 50 % due to biological incompatibilities , so maybe the same applies to Unas . It makes sense if you consider that on Earth , most species have immune systems that have evolved to attack parasites to the extent that giving someone worms is a good way of combating autoimmune illnesses , essentially because the immune system attacks the parasites rather than the person ' s own cells , so it ' s logical that the Unas immune system could evolve to reject Goa ' uld symbiotes , as they both evolved on the same planet . By the time SG 1 visited the Goa ' uldUnas homeworld , Goa ' uld infestations of Unas appeared to be quite rare , and this could be as much due to Unas immune systems having evolved to fight Goa ' uld as those bone necklaces they wear . Unas regenerative abilities is also suggestive of this . Thus , when Ra discovered Earth , there was a very real problem with Unas hosts rejecting symbiotes , which would put the whole species of Goa ' uld at risk of extinction . But humans , while having evolved ways of dealing with Earth parasites , would not have evolved similar ways of dealing with wholly alien parasites . Added to that , Hathor would have engineered the first Jaffa , which in addition to incubating the baby Goa ' uld , also improve compatibility between human host and Goa ' uld symbiote that was not possible to do with Unas . This reduces the rate of the host rejecting the symbiote , essentially because the symbiote can suppress or be undetected by the human immune system . And thus the Goa ' uld were saved from extinction . Temporarily .