Factual error: After Jerry and Rachael steal the case, ARIA is shown somehow activating the sprinklers in a nearby bank to crowd the street. These kinds of sprinklers are controlled manually, not electronically. The only way the water can flow from the sprinkler heads is if a glass vial stopping water flow breaks from high temperature. There is no knob, switch, lever, or button that can activate these sprinklers. There's no way ARIA could interface with it, even in the future as it would never meet the fire code (if the sprinklers are electronically activated, what happens if a fire has destroyed the control mechanism?).
Suggested correction: By the logic of the movie, the super computer should have simply hijacked another person's life and instruct him/her to set a fire manually (just like the old-man servant in the capitol, who instructed Rachael to get changed in 3 minutes).
