The potentially cool thing about LLM's is bootstrapping. No matter how much COBOL you wrote, COBOL didn't get better. LLM's can be used to make LLM's (and other software stuff) better. LLM's could be used to create their successor(s).

Of course, in the end, it won't do us humans any good, because when the Singularity AKA Rapture comes, we'll all be converted to Computronium. :-)