A screen can show the world while hiding the room you are sitting in.

The screen offers everywhere and the cost is here. Events on other continents feel more present than the person across the table, and the room you are actually in becomes a kind of background you are not attending to.

Practice looking up. Notice what is in the room, who is in it, what the light is doing. It sounds slight and it is the difference between having been somewhere and having merely been physically located there.