I work at a company where we have been doing this sort of stuff for a while now. It's very impressive in the case of Google because of the size of its index an

I work at a company where we have been doing this sort of stuff for a while now. It's very impressive in the case of Google because of the size of its index and the level of error tolerance of the matching sequence used. I wonder how complete these instant results are compared to the now lame old click-to-submit search results? I tried to test and noticed the count of instant results is slightly smaller but the top items appear to be the same most of the time. Anyone has insights?