[totalZero]

  Traditionally, these data sets have lived in silos.
  But what could happen if it all was aggregated safely
  in one place?

It seems unwise IMO for me to give a large corporation (Apple, Equifax, etc) rich data with which to characterize my lifestyle and physical health.

[someguydave]

Which is why Apple is not looking at your data?

[VLM]

Not yet.