> amongst other things I think that this is an important point. Obviously there's more computing power available in Apple/Google/whoever's data centres than o

> amongst other things I think that this is an important point. Obviously there's more computing power available in Apple/Google/whoever's data centres than on my device, and I'm sure that is, or at least was, a concern; but I also don't believe that they are indifferent to the utility of sitting on such a huge volume of user-submitted, real-world data.