Eric S. Rabkin

alternate universe n.	1977 R. Scholes & E. S. Rabkin Science Fiction: History, Science, & Vision 178 Science fiction has provided us not only with visions of time travel and hence of alternate time streams, but of whole alternate universes. The term ‘alternate universe’ may refer simply to the universe in which history follows an alternate time stream, but more strictly speaking, it refers to a universe somehow complete and yet coexistent with ours.
temporal loop n.	1978 E. S. Rabkin Fantasy Literature: Gut with a Backbone in CEA Critic (vol. 40, no. 2) Jan. 10 When Wallas in Robe-Grillet’s The Erasers kills the man whose murder he had been dispatched earlier to solve, we are caught in a temporal loop that throws good old comfortable Aristotelian cause-and-effect to the winds.
thought-controlled adj.	1986 E. S. Rabkin in G. E. Slusser & E. S. Rabkin Hard Science Fiction 33 He first approaches Lys through the underground tunnel in a thought-controlled, needle-shaped car.
timestream n.	1977 R. Scholes & E. S. Rabkin Science Fiction: History, Science, & Vision 178 Science fiction has provided us not only with visions of time travel and hence of alternate time streams, but of whole alternate universes. The term ‘alternate universe’ may refer simply to the universe in which history follows an alternate time stream, but more strictly speaking, it refers to a universe somehow complete and yet coexistent with ours.