The Bactra Review The Weightless
That's a joke, of course, but not too much of one. The same VLSI techniques
used to make digital microelectronics are already being used to make analog
circuits, which would be extremely useful for implementing in hardware neural
nets, and things like the distributed chaotic computers of Sinha and Ditto
(Physical Review Letters 81 (1998): 2156--2159)
--- both models of computation which can do everything Boolean circuits can.
Digital computing may turn out to be as transient as, say, using steam engines
as prime movers.