We have thumb drives that can store petabytes of data?
Or did you mean the "big data" crowd which thought 500GB was noteworthy? I don't think anyone took those serious, neither in 2010s nor now. That was always "small" data
> We have thumb drives that can store petabytes of data
We do?
Most companies using term "big data" had datasets in TB region. One company I had a gig at had full Hadoop cluster setup and their whole dataset was 40GB. Their marketing had all the big data adjacent keywords over the brochures for clients.
My rule of thumb was "can it fit in RAM on a server?" If it can, then it's not big data.
500GB is in the "fits" category.