It win be a device that will permit communication without any time interval between two points in space. The device will not transmit messages, of course; simultaneity is identity. But to our perceptions, that simultaneity will function as a transmission, a sending. So we will be able to use it to talk between worlds, without the long waiting for the message to go and the reply to return that electromagnetic impulses require. It is really a very simple matter. Like a kind of telephone.
Ursula K. Le GuinOh, never and forever aren't for mortals, love. But we won't be parted till I know it's right that we part.
Ursula K. Le GuinEven in the obscure vast history of a planet the time it takes to make a forest counts. It takes a while. And not every planet can do it; it is no common effect, that tangling of the sun's first cool light in the shadow and complexity of innumberable wind-stirred branches.
Ursula K. Le GuinDo you see, Arren, how an act is not, as young men think, like a rock that one picks up and throws, and it hits or misses, and that's the end of it. When that rock is lifted, the earth is lighter; the hand that bears it is heavier. When it is thrown, the circuits of the stars respond, and where it strikes or falls the universe is changed.
Ursula K. Le Guin