I know it doesn't seem likely, but these things have a way of creeping up on you. 25 years ago the prospect of everyone having 8 GB of ram was far fetched, computers still had 8MB and 8GB hard drives were years off. In 10 years we could have petabytes in our phones and from there exabytes aren't such a huge leap.
The leap to 8 exabytes is 6 orders of magnitude greater than the last 25 years.
That would be 30 Moore's doublings (applied to storage) and would take 60 years. Oh, and we would still be able to address all of the ram with a 64 bit address.
In 10 years we will be closer to 256 GB in the phone, not petabytes or even terabytes (but terabytes would be close).