Multiple Gate Network Theory:
Ninth chevron jumps between gate networks, no not galaxies, networks.
Stargates have red crystals(sometimes the glow looks orange, but I'm pretty sure it's red). These red gates(I'll explain pegasus later) are free access gates, open to anyone to use and they number approximately 78% of all gates in the ancient's network(ori not included because the ancients didn't build them).
However, ever wonder how you could have trade between planets and not bog up the gate? Need to dial home under fire...whoops, crates of potatoes going through, have to wait.
Answer is Ancients build several gate networks on different 'frequencies'. Wormholes on one frequency wouldn't interfere with others. You could have two wormholes to earth simultaneously on different networks because they are constructed differently.
Orange gates...cargo transfer. Puddle jumper-like trains would carry cargo through these gates, which would be located on large, populated worlds in addition to the red gates(color is based on the crystals, by the way).
Green gates would lead to secure facilities...shipyards, safehouses, armories, training facilities, etc...basically all the good stuff you don't want the average villager to stumble onto.
Yellow gates...VIP transit system between ultra-high security locations. Only a handful of these gates. Very exclusive. Mind you, the ancients only gave the asgard a red gate.
Violet gates...these are larger than normal, but not quite supergate size. They are the reason why ancient warships don't need intergalactic hyperdrives. 100 or so strategically placed in the void between stars within a galaxy provides transit for ancient ships between various sectors of the galaxy. Since they are not near stars or planets, no one would know where they were unless they knew where to look, which is why the Goa'uld never found them. Also explains why ancient ships were long and narrow.
Blue gates(non pegasus)...these were dangerous locations, maybe a research outpost near a black hole or a planet dangerously close to a star. Locations with value, but definitely not safe. Step through one of these and you die without precautions. Experimental research would also be on this network.
All of these networks were established in MW and the rest of the ancients' domain, but not Pegasus. Pegasus gate network was established after the plague killed the ancients. The ones who traveled to Pegasus were infected and seeded the new galaxy with life+advanced one set of humans as far as they could(maybe our level, a little more or a little less) but they couldn't push their development to their level.
These sub-ancients inhabited decontaminated parts of Atlantis while the true, infected ancients coexisted in otherparts. They taught these 'new ancients' and gave them the city piece by piece as the plague knocked the ancients off one by one. Some ascended, which the neoancients observed and saught to copy throughout their existence(which lead to their pacifistic policies and indifference to other matters). Once the last of the ancients died the remainder of the city was sterilised and the neoancients carried on the work of their predecessors.
Pegasus gate network was deemed an 'experiment' hence the blue color, but was not part of the blue network. It was deliberately isolated to not allow contact with the plague in other galaxies. The pegasus galaxy(which can only be left through Atlantis's gate crystal) was kept isolated later on as a precaution against the wraith expanding beyond the galaxy. So pegasus gates have blue crystals because the humans in the galaxy were an 'experiment' after the plague, but it's not part of the blue network.
The 9th chevron is dialed last, in case of a 7 symbol address in galaxy it would technically be 8th, and an access code is prompted by flashing chevrons on DHD. Once the proper response is inserted the gate activates and JUMPS networks. Example...red gate connects to green gate with ninth chevron added after address. Intergalactic address (8 symbols) + gate jump = 9th chevron.
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I have yet to find any reference in any episode that can disprove the MGN theory...and many that hint at it, Midway especially. Feel free to chime in. I've vetted this idea thoroughly but I could always have missed something.
Note: Colors and number of networks are purely speculative save for Red and Blue(which we've seen)
Ninth chevron jumps between gate networks, no not galaxies, networks.
Stargates have red crystals(sometimes the glow looks orange, but I'm pretty sure it's red). These red gates(I'll explain pegasus later) are free access gates, open to anyone to use and they number approximately 78% of all gates in the ancient's network(ori not included because the ancients didn't build them).
However, ever wonder how you could have trade between planets and not bog up the gate? Need to dial home under fire...whoops, crates of potatoes going through, have to wait.
Answer is Ancients build several gate networks on different 'frequencies'. Wormholes on one frequency wouldn't interfere with others. You could have two wormholes to earth simultaneously on different networks because they are constructed differently.
Orange gates...cargo transfer. Puddle jumper-like trains would carry cargo through these gates, which would be located on large, populated worlds in addition to the red gates(color is based on the crystals, by the way).
Green gates would lead to secure facilities...shipyards, safehouses, armories, training facilities, etc...basically all the good stuff you don't want the average villager to stumble onto.
Yellow gates...VIP transit system between ultra-high security locations. Only a handful of these gates. Very exclusive. Mind you, the ancients only gave the asgard a red gate.
Violet gates...these are larger than normal, but not quite supergate size. They are the reason why ancient warships don't need intergalactic hyperdrives. 100 or so strategically placed in the void between stars within a galaxy provides transit for ancient ships between various sectors of the galaxy. Since they are not near stars or planets, no one would know where they were unless they knew where to look, which is why the Goa'uld never found them. Also explains why ancient ships were long and narrow.
Blue gates(non pegasus)...these were dangerous locations, maybe a research outpost near a black hole or a planet dangerously close to a star. Locations with value, but definitely not safe. Step through one of these and you die without precautions. Experimental research would also be on this network.
All of these networks were established in MW and the rest of the ancients' domain, but not Pegasus. Pegasus gate network was established after the plague killed the ancients. The ones who traveled to Pegasus were infected and seeded the new galaxy with life+advanced one set of humans as far as they could(maybe our level, a little more or a little less) but they couldn't push their development to their level.
These sub-ancients inhabited decontaminated parts of Atlantis while the true, infected ancients coexisted in otherparts. They taught these 'new ancients' and gave them the city piece by piece as the plague knocked the ancients off one by one. Some ascended, which the neoancients observed and saught to copy throughout their existence(which lead to their pacifistic policies and indifference to other matters). Once the last of the ancients died the remainder of the city was sterilised and the neoancients carried on the work of their predecessors.
Pegasus gate network was deemed an 'experiment' hence the blue color, but was not part of the blue network. It was deliberately isolated to not allow contact with the plague in other galaxies. The pegasus galaxy(which can only be left through Atlantis's gate crystal) was kept isolated later on as a precaution against the wraith expanding beyond the galaxy. So pegasus gates have blue crystals because the humans in the galaxy were an 'experiment' after the plague, but it's not part of the blue network.
The 9th chevron is dialed last, in case of a 7 symbol address in galaxy it would technically be 8th, and an access code is prompted by flashing chevrons on DHD. Once the proper response is inserted the gate activates and JUMPS networks. Example...red gate connects to green gate with ninth chevron added after address. Intergalactic address (8 symbols) + gate jump = 9th chevron.
------------------------------------------------------
I have yet to find any reference in any episode that can disprove the MGN theory...and many that hint at it, Midway especially. Feel free to chime in. I've vetted this idea thoroughly but I could always have missed something.
Note: Colors and number of networks are purely speculative save for Red and Blue(which we've seen)
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