It's not the same because CBR (Case Based Reasoning) will forever need the control cases to generate an output, which in turn, and only after human validation, will become a part of the control group. That's how it "learns" and that's why it needs an exponentially growing volume of data. Neural Networks' output is a polynomial function, it's math (out1 = k1*x1(t) + k2*x2(t) +... ). In the beginning it needs a lot of data to adapt and find the best values for k1,k2,k3... for each neuron and the correlative values of each synapse, but after that training phase it's not much more demanding than a current gen game.
Google search is not AI because: It doesn't do anything; It needs human validation. It's AA (artificial assistance). Although whatever data it is collecting might be being used to feed an AI system *tinfoil*....
Wasn't synd a 3 player?