Far And Near

Other universes are far, near or both: far - or even unreachable - in one direction but near in another. Eutopia is:

"...more than infinitely remote."
Poul Anderson, "Eutopia" IN Anderson, Past Times (New York, 1984), pp. 112-141 AT p. 124.

Nothing is more than infinite but there are different infinities. A multiverse of space-time continua is more than a single continuum which is more than an atemporal spatial volume which is more than a plane with is more than a straight line even if all five are infinite. No point is infinitely remote because any two points are separated only by a finite distance even if they are on an infinite line. It is impossible, merely by moving along a single straight line, to reach a point on a parallel straight line. However, it is possible to rotate through ninety degrees, then to move at right angles between two parallel lines, thus to cross from a point on one line to a point on the other. A Flatlander cannot reach a higher plane by moving on his native plane but some trans-planar force might lift him up.

"He could travel to the farthest of those stars which had begun twinkling forth against purple dusk - were it possible to exceed the speed of light - and not find Eutopia. It lay sundered from him by dimensions and destiny. Nothing but the warpfields of a parachronion might take him across the time lines to his own." (ibid.)

"The parachronion hummed. Energies pulsed between the universes. The gate opened and Iason stepped through." (ibid. p. 139)

Thus, the "infinitely remote" is instantly reached by stepping through a gate.