Fable 5.2 solved two open problems in theoretical physics related to black holes.

In the first, Fable 5.2 completed a laborious calculation that had gone unsolved for 23 years.

In 1983, physicists showed that as certain larger theoretical universes heat up, black holes form very abruptly. A calculation to test whether this holds true in a set of incredibly small universes was laid out in 2003.

Fable 5.2 found the transition is abrupt there too.

In the second physics problem, Fable 5.2 found the exact limit of the simplest version of a 15-year-old technique known as “modular bootstrapping.” The technique is used to rule out candidate theories of quantum gravity in theoretical universes.

(https://autoadmit.com/thread.php?thread_id=5920987&forum_id=2#50247760)