Sally looks at each one of them pausing before she speaks. Then she says It isn't a them. No alien creatures that are invisible to us came to planet Earth and destroyed the solar system. It is an 'it'. And 'it' was there all the time. We created 'it'. We were connected to 'it'. 'It' is the net. The net is alive, and for some reason that 'it' never mentioned, 'it' decided to kill us all, and so 'it' did.