as i laid out, historical science is just about bigbrain copes. i've come across multiple theories as to why the arabs didn't build or maintain roads. the most successful, current favorite is that doesn't make sense for camel drivers, while the pecularities of our own hooved friends are such that costly roads are indeed needed. the difference in shekels via trade advantage comes down to a couple percent, which a modern (((scientist))) can supposedly calculate on an excel sheet. turns out, those arabs carefully calculated rather than letting things fall into disuse. the real explanations are far simpler: they aren't so smart. only smart races care about infrastructure. the meme of the dummy and the high iq outlier agreeing is validated once more. everybody knows -niggers, beaners, muslims are both too lazy and stupid to really care about good roads and bridges, even if these were of critical importance for a nation. that, and the timescale is totally off.
Germany