"Whenever two or more of you are gathered in my name, there I am also."

So this is going on all the time. It just depends on whether the Lord turns on "visibility mode" for any particular person or group.

Then there is the question of "what is eternity" and what does the Lord mean by "I AM". We may be able to be everywhere and everywhen all at once.

I suspect that linear motion through time at the constant rate of one second per second is an artifact of this reality.