And that is fine by me. Using my behavioral data to train an underfitting model is very different from actually storing my behavioral data. Sure, the word 'unde

And that is fine by me. Using my behavioral data to train an underfitting model is very different from actually storing my behavioral data. Sure, the word 'underfitting' does the heavy lifting in my previous sentence. But I don't think that overfitting is even feasible at this scale. Google does not train models that just memorize the habits of 3 billion people. Such a model would be useless.