> But using their private lookup method as scaffolding, the authors constructed a new scheme which runs computations that are more like the programs we use ever

> But using their private lookup method as scaffolding, the authors constructed a new scheme which runs computations that are more like the programs we use every day, pulling information covertly without sweeping the whole internet. Doesn’t Google already accomplish this? Or is the key here that Google doesn’t do the sweeping in a covert way? So search boils down to two problems: building the index and using the index. Or am I confused?