Analog computer to make specific calculation faster. GPUs mostly do matrix multiplication ie multiplying pairs of numbers and then adding the result into accumulator over and over again. It can be done in analog computer by current or light much faster in parallel
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Thanks for the explanation, I didn't know it was considered analog computing.
But overall, there's not much to go on, right? The trend is for technology to continue developing, regardless of whether its intended use is good or bad...