I can't even understand Slovenes across the border who live 30 minutes away, let alone Russians.
Americans think Slavic languages are UK English, US English and Aussie English lol.
I thought the Slavic languages were close enough to each other (split ~2,000 years after Germanic) that a Russian & Serb could basically communicate, albeit in broken sentences?
Or is that only true WITHIN each sub-clade? (ie, no crossover between East, West & South Slavs?)