Neural Nets and Back Propagation

The key notion here, which i sould hove, got got developed later. It was this idea of hidden units that you would have the imput layer and output layer. And if it's been if it's something that kind of looks like a be, it's stll in the basin of attraction for a b. Back propagation was a big thing in the early is a sort of a thing people talked about. But, e ah, but it didn't really catch on. Now, our people were actually using yo nets, am in ar for industrial purposes.