> Google has something like 10+ years of my saved search history. its just ridiculously good at finding exactly what I'm looking for (which quite often is something I searched in the past).

This is the opposite a lot of the time for me. If I found what I was searching for last time, I wouldn't still be searching but google thinks that because I clicked on it previously, it's what I'm after. If google gets it wrong the first time the wrong results become self reinforcing.