I think you're not quite getting what I wrote
nah, i got what you wrote just fine.
they may be in the same language family but not on the same sub-branch)
i'm assuming you couldn't keep a straight face even as you typed that.
According to what you said, I assume you know Russian, Ukrainian and Belarussian as well as Czech and other Slavic languages
no need to speak all those languages and you know it. I used to sit down and watch 'Nova' and catch maybe 25% of the spoken words, over 50% if it's subtitled, and I'm not even a native slavic speaker. Rumor has it that the Slovakian language is even closer to Polish than Czech. My wife can understand at least 50% of spoken words in Czech and when I went to Prague with my Polish friends, they spoke Polish to the Czechs and did just fine. My brother in law is straight from Moscow, we talk about Polish vs. Russian all the time, I'm well aware of the similarities/differences.
Don't make the mistake in thinking I'm one of those dime a dozen jack ass americans that went to Poland to chase tail, spent 9 months teaching in some garbage callan school coming in every morning stinking like Zywiec and gave Polish the ole' college try and failed miserably, only now to come on here and tell everyone how impossible it is. I studied my pants off to learn Polish (yes, I LEARNED Polish) and know just how difficult it is compared to other languages I've studied. So for everyone shopping the bookstores for 'Hurra! Po Polsku' or 'Isc czy chodzic?' or '301 Polish Verbs' or 'Colloquial Polish', to answer your question, yes, Polish is a b!tch to learn.