Chronopolis,Lucca's death and FATE's existence

[Crawler333]

After the victory of Chronopolis over Dinopolis, FATE creates El Nido and the Records of Fate in order to avoid "major changes in the continent's timeline" which could be triggered by El nido's residents to ensure her own creation.On the other hand, she will send Lynx to abduct-and eventually kill-Lucca in 1006 A.D. (more or less).Considering that Lucca herself is one of the masterminds behind FATE's creation, how can FATE/Chronopolis exist at all after she's killed?

[AuraTwilight]

Time Traveler's Immunity. After traveling through time, a time traveler becomes immune to the changes in the timeline they create. Hence why a person could kill their grandfather and still exist.

[Zaperking]

Ehh, Lucca gets abducted in 1015AD, and we don't know when killed.

It's not just that Aura.
Lucca isn't the mastermind behind FATE. She's the mastermind behind the Promethius Circuit technology which stops computers from going rouge. Belthasar on the other hand created FATE, and used Lucca's design to make Robo into the promethius circuit.

Lucca could have made the designer earlier, and like kept it in a safe, or given it to someone like Luccia that would pass it down in history up till the point till Belthasar would know about it in the future, if Belthasar doesn't know it at the present already.

[Chrono'99]

Also, it's not so important, but FATE isn't really a "creation". FATE is Mother Brain upgraded by Belthasar. We don't know who built Mother Brain, but it might have been before 1,999 A.D. and wasn't by Belthasar in any case.

[Zaperking]

Yes, but the upgrade is beyond anyone.
But I guess Belthasar also downgraded it too, because he probably needed FATE to go rouge, hence he had to use Robo as the circuit, and not the actual computer chip that prevents computers going crazy.

[ClayAKAMe]

Ummmm. Ok... I guess.