And when you think about c as the speed of causality, it becomes a lot more obvious why FTL travel/communicate is (almost certainty) impossible without breaking

And when you think about c as the speed of causality, it becomes a lot more obvious why FTL travel/communicate is (almost certainty) impossible without breaking causality.... You are going faster than causality, of course it breaks. The other option is to break relativity, which is what most science fiction media does, often accidentally.