@cstross "the wiring is the computer" is not too surprising. Years ago playing w/ algorithms for FPGA, needed to invent a bit-string perfect hash table. One way of doing a perfect hash function/table involves a matrix and offset, H = Mx + v, but our math needed to be boolean (AND, XOR), a "1" coefficient was a wire, and if we wanted a one-cycle hash index, then we needed no more 1's in a row than maximum inputs to an FPGA XOR. So, a sparse boolean matrix. The wiring was the computation..