Here is an english analysis of the text that easily showed up in an internet search:
https://www.cantab.net/users/leonardo/Downloads/Varian%20Sym...
This source includes analysis of "the Black Stone."
LLMs haven't solved any of the 2029 predictions as they were posited. But I expect some will be reached by 2029. The AI hype acts like all this is easy. Not by 2029 doesn't mean impossible or even most of the way there.
They certainly haven't "condensed the entire internet into a few TBs". People aren't backing up their personal data to a few MB because your assumption is false.
Maybe when people stop hand waving abilities that aren't there we will better understand their use as a tool and not magic.