There is a good chance that someone could get to the 400th page if there were around a total of 8000-10000 hits for an for a obscure topic. It would be a multi

There is a good chance that someone could get to the 400th page if there were around a total of 8000-10000 hits for an for a obscure topic. It would be a multi-day effort, and I am sure that person would wish that they could search within the result or group the result by some properties.