"Celt" Conjecture

[MD]

But for Caesar Germans were less civilized (cities, by the way, are one of the hallmarks of civilization, back then and now). See Riggsby's careful analysis I linked above.
As mentioned repeatedly, beyond the Rhine there was a similar "city"-based culture, proving Caesar's account wrong.

Caesars account says that the Germans don't have a city based culture, thats a difference. The Oppida across the Rhine were not inhabited by Germans. The casual reader of the BG may get the impression that are barely any Celts are living east of the Rhine, but Caesars doesn't deny the fact.