your_store - 11:54 pm on Apr 1, 2004 (gmt 0)
I placed a madeup word on a critical page of my site
I'm not sure, but it seems finding a "word" by itself in content would be a lot simpler than parsing a word from a concatenated string of characters.
I can see no reason for operating a two-dictionary system, but perhaps if I gave the matter more thought I might come up with one.
My hypothesis.. The first dictionary is simply the index. A listing of every string of characters Google has found. These aren't neccessarily words. The second dictionary would be a listing of known words. Google could then spend it's processor time trying to parse out a limited number of known words, rather than trying to look for every string ever written on the web.