[jjsheridan5]

Everyone here noted that the idiot didn’t answer his own question.

I have often wondered if it isn't similar to the reason that the Australian accent (supposedly) developed. The Australian accent developed as the result of the hot, dry, dusty air, and the fact that it dissuades deep generation of sound, and also emphasized economy of breath. I have no idea if that hypothesis is true, but it does seem to make sense. I wonder if the extreme heat and dampness of the south affected speech patterns.

[gusty]

I believe the Australian accent is very similar to a London accent, especially the East End. It stands to reason, being that Australia was a penal colony, London probably had the most criminals, thus the origin of the Australian accent.