Among thousands of people, you meet those you've met. Through thousands of years, across the boundless wilderness of time, you happen to meet them, neither earlier nor a bit too late. There is nothing to be said except to ask lightly, "Oh, you're here too?"
The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences.