The Egyptians had the luck to live near a river which on a yearly basis deposited rich soil to grow food on - our Aboriginals had a large, very dry continent. Also no outside competition from other tribes/ peoples, just individual tribes - small, yes bickering, but no real need to become technologically advanced. They managed this land pretty well, but were lucky to be so isolated. - until the big ships loomed on the horizon . . .
I came from the Dream time From the dusty red-soil plains I am the ancient heart The keeper of the flame I stood upon the rocky shores I watched the tall ships come For forty thousand years I've been The first Australian
