Jorge Luis Borges as source of "many worlds"

In his review of Seth Lloyd's Programming the Universe: A Quantum Computer Scientist Takes on the Cosmos, "The Computational Universe," Jürgen Schmidhuber writes:

Lloyd's historical notes on computation and bits refer to Charles Babbage's analytic engine and John Napier's logarithmic bones but fail to mention Gottfried Wilhelm Leibniz, the inventor of the bit (1700), and Wilhelm Schickard, constructor of the very first (non-program-controlled) computer, in 1623. For some reason Lloyd also seems to give equal credit to Zuse and Ed Fredkin as creators of the "universe as a computer" idea, although Fredkin got into this business long after Zuse. On the other hand, Lloyd did enrich my understanding by pointing out that the "many worlds" theory (usually attributed to the physicist Hugh Everett) can be traced back to poet and novelist Jorge Luis Borges.