Well, they already had a big instance of that, in the Minsky Papert book "Perceptrons", talking about linear separability. Talking about backpropagation (as opp

Well, they already had a big instance of that, in the Minsky Papert book "Perceptrons", talking about linear separability. Talking about backpropagation (as opposed to delta rule) in opposition to that is a sort of mushing of history but it's interesting to think about