Big data's no true scotsman problem:

> Despite what their name might suggest, so-called “large language models” (LLMs) are trained on relatively small datasets.1 2 3 For starters, all the aforementioned measurements are described in terms of terabytes (TBs), which is not typically a unit of measurement one uses when referring to “big data.” Big data is measured in petabytes (1,000 times larger than a terabyte), exabytes (1,000,000 times larger), and sometimes zettabytes (1,000,000,000 times larger).

(OP here) — with you on that analysis. This was in an effort to make the piece legible for a (primarily) non-technical, policy audience. Rigorous numbers are in other parts of the piece (and in the sources behind them).

The joke (10 years ago) was that "big data" means "doesn't fit on my Mac". Kind of still works...