Ariadne: Why are they all looking at me?
Cobb: Because my subconscious feels that someone else is creating this world. The more you change things, the quicker the projections start to converge on you.
Ariadne: Converge?
Cobb: They sense the foreign nature of the dreamer. they attack like white blood cells fighting an infection.
Ariadne: What? They're going to attack us?
Cobb: No, no.
[quietly; almost to himself]
Cobb: Just you.
[creates a new bridge over the street]
Cobb: This is great, but I'm telling you, if you keep changing things...