The author certainly has a point, but I wonder if analog computers (in the sense of DA/AD + ICs that can be plugged into general purpose systems) suffer from economies of scale? Maybe energy + depreciation costs of general purpose computers are still lower than ordering a minimum of 10~100k units of some custom analog computer w/ good enough quality control.
Apparently something similar to FPGA exists for analog signals [1], I wonder how popular/practical it is.
I got some FPAA chips I assume you're referring to, the ones I've got are Anadigm ones, I need to get round to using them. The downside is the ones I've got, simply make use of switched capacitors for creation of filters, so there will be some form of discretization in the temporal domain I guess.
Apparently something similar to FPGA exists for analog signals [1], I wonder how popular/practical it is.
[1] https://books.google.com.br/books?id=qjnnBwAAQBAJ&pg=PA93&lp...