Point question

With the Sanhedrin, the problem is fundamentally different from what we know. When there is a Sanhedrin and you think they were wrong about the facts or the law, you can always come and try to convince them of this. If they are convinced, then everything is fine. And if not, then you are probably wrong, and at least halachically, in my opinion, they should be listened to. Today, the problem is that those who established the binding determinations in the law (the Talmud) are not here so that I can try to convince them. Therefore, here I argue that in the place of a clear factual error, their words are invalid.