I have been watching Archengela's channel on YouTube. He described Star Trek as fantasy. And, according to him, there has to be consistency within that fantasy. I agree with him. There have been times when Star Trek wasn't consistent with itself. I find it frustrating that this is so. I wish the people in charge took the time to do research and work within what was established and expand upon what was established. Instead, they conveniently choose to ignore what came before in favor of telling a story. For me, one of the biggest inconsistencies was first contact between Humans and Klingons, as this was the A-plot of "Broken Bow". We have the version as given by Captain Picard in "First Contact". So, which version is to be believed?