No, you're referring to very broad language families. See my other post or www.ethnologue.com for accurate information. It's a bit of a tricky business, becaus

No, you're referring to very broad language families. See my other post or www.ethnologue.com for accurate information. It's a bit of a tricky business, because what counts as a language is often also determined by political decisions. Mutual comprehensibility is not a reliable criterion. However, modern linguistics uses pretty good sets of "soft" criteria for the classifications.