Several people have asked what the poster is referring to here. The poster is correct:

https://en.m.wikipedia.org/wiki/Cuneiform_script

> Between half a million[3] and two million cuneiform tablets are estimated to have been excavated in modern times, of which only approximately 30,000[4] – 100,000 have been read or published.

The fact that so few have been translated thus far is pretty amazing.