Hi Marc, I follow what you're saying but will point out it doesn't have to play out to exabytes. Reason is that IDs are non recyclable and there are losses due to bulk load reservations and deletions. I'm looking at JG from a 3store pov where a trillion triples isn't out of reach when it comes to knowledge graphs. Hearing that limits are scoped to the graph makes it much more palatable. 

thx, matt