It is always the present in a mirror. Who says so? Ageless Alice says it; and so do you. You've looked in the looking glass (what a name! as if the glass is looking at you!) and you've seen the thing I'm talking about. You know as well as anybody that a looking glass has no future and no past.
If the mirror world and the real world mix, anti-matter and matter, there will be an explosion. This is because timelessness and time make a perilously volatile mix. It's a truth well known to the world's mystics. ("'For what use is a life,' said Alice, 'without visions and conversations'")