I tried with some other undeciphered texts and I just got random translations that changed drastically with every attempt. Once I became skeptical, I tried to see if it could do a simple replacement cipher on English text, and it could not. I don’t think ChatGPT is a good fit for this kind of problem.
This is just what the biting edge of demographic collapse looks like. Inflation, economic stagnation and yet perpetually tight labor market because there are not enough young workers to support steady state demand.