If you believe in the "Out of Africa " theory - the African...

If you believe in the "Out of Africa " theory - the African migration has been going on for a few thousand years

https://en.wikipedia.org/wiki/Recent_African_origin_of_modern_humans

Modern genetics does not always agree with this theory but it is interesting that as long as the earth spins around the sun
man will spin around this earth.

The strongest will not necessarily survive
those that can best adapt will survive

History has shown us that Empires have come and gone for all different reasons and borders have changed continuously throughout the eons of time.

I'm 63 and I think I have seen the best of Australia and of this world - based  on the set of values I was brought up and educated with.

If I was a 20 year old muslim - I would see the next 50 years as an age of great opportunity and conquest.

We live in interesting times