I was reading an old post asking about how the Mycenaean micro-societies collapsed, and the reply from an Ancient Greek historian mentioned a number of theories. One being the Sea Peoples, but they said this was also considered a "historical mess". This is what we just recently learned in our introductory Pre-1500 World History class for the reason why a lot of civilizations collapsed in the Bronze Age going into the Iron age. This also followed another big drought again (which I'm pretty sure this historian also said was another theory). Is it just a historical mess for the Mycenaeans, or is it also a mess for everyone else when considering the fall of the Old Babylonian Kassites (I think that was the last people before the Neo-Assyrians?) and New Kingdom Egypt?

Forgive any incorrect chronology and please correct me on it if so