Well the skeptic in me doesn't want my model touched by other peoples models. Of course it depends on the application... For example, I might not want my keybo

Well the skeptic in me doesn't want my model touched by other peoples models. Of course it depends on the application... For example, I might not want my keyboard autocomplete learning from others, but I might want my self driving car to do it. For applications where we want a common model, I see no other way to do it but this. The idea companies collect massive stockpiles of data forever is infeasible.