How do the connections even keep up?
Am I the only one who is thinking "ok, if we have that kind of data scale, how can you possibly keep up from a network perspective?" 8K video? I am scared to barely watch .MKV files on my mobile device or via my home internet connection, what would the internet bills look like processing that size of data? Can the network providers even keep up with the demand for processing and accessing such vast amounts of data? That is the real question. If you are an organization working with petabytes, or exabytes, the processing power to manage the information, outside of storage requirements, will be significant. Throw in Cloud, and how you plan to access the information over the internet, and either you will be like Google and build your own networks, or we will have to see a revamp in the way data charges are set by the telecom providers.
And don't even get me started on replication to cloud, or disaster recovery/business continuity. How long would it take to work with that much data over today's networks?!