What I mean by that is that it passively observes people as they live their lives. It scans the world's blogs and looks at what people are writing, and these people don't know they're being watched or interviewed.
Ou seja, observa as pessoas passivamente à medida que vivem a sua vida. Analisa os blogues do mundo e vê o que as pessoas estão a escrever. As pessoas não sabem que estão a ser observadas.