1. "is ..." -> "has to do with ..."
2. reformulation of the sentence: it wasn't complete, because after "Thanks to one of our users, Dan Brown ..." there was just "additional information" about Dan Brown but not what we actually have thanks to him. I think this formulation makes it a little bit easier to understand the sentence
3. cpu architect -> CPU architecture (i thought it was the common way to state it. Also, abbreviations are generally uppercase)
Hope this helps :)