DASH: "DASH is not sure that Rachamim's statement that 'No Aboriginal of today would be remotely recognisable to an ancestor of even 1,000 years ago' is correct.": It is true. Physically of course he would recognise the similarity of most, not all because of intermarriage among some groups. However, culturally most things have changed drastically.
"When Rachamim says that there is a consensus on this issue what does he mean? A consensus of whom?": I mean in terms of the anthropological community. I will not pretend that I am very well versed on ALL the hundreds of cultural groupings in and around Australia ("around" in terms of Tasmania where they are practically extinct and the Torres Strait) but I do have enough of a foundation on this issue to confidently make this statement.
Anthropologists love Australia, I remember in university spending much time on the land and its indigenous people. I also easily remember the lament I heard from different professors and grad students on how frustrating it was to have to deal with such an interesting place and groups of people and have to face the reality of the European holocaust visited upon the land(s).
Even pristine cultures that have probably never seen a whiteman, such as uncontacted tribes in Irin Jaya or the Amazon have some minimal level of exposure through trade and other contact with groups that have had more than moderate contact. I have spoken about the American, his name is Kelly but i cannot recall his surname, who lives on Bali.
This man runs jaunts into Irin to meet what he calls uncontacted tribes (there is some debate as to the mans veracity,etc). I saw 2 documentaries on him and in the 2nd they see a small group of males and after finally establishing contact , the elder male had a bracelet of PLASTIC beads.
There is a huge difference between a bracelet and lack of total recognition but the point is that even the most pristine groups have had some level of cultural assimilation. How much more in a place like Australia?
There are individuals and a handful of organisations that truly seek to preserve a vanishing way of life and in some cases restore that which has been lost BUT to a large degree that will be impossible to recover. Hypothetically, if we were able to transport an Aborigine from 1000 years back to the Outback of today, what would he recognise? Camels? Canetoads? Even physically the environment has been irreprably altered. The Peoples of the region have been effected much more heavily. Metals, plastics, textiles, foodstuffs, and so on.
"The Hebrew spoken todayy...": There are 2 forms of the language today. There is Biblical, or Classical Hebrew, and Modern Hebrew.
Classical, "Eevreet" AKA "Ivrit" is EXACTLY the same as that spoken for weell over 2500 years. Modern Hebrew, or "Eevreet Chaya" is a language formulated in the 19th Century CE/AD. It is of course largely based on Classical with modernisms incorporated. Grammar and Structure in genral are taken from Classical. An ancient Jew would read it perfectly but the modernisms naturally would be a cipher. Words like "telefone" and "televiziyah" would be incomprehensible to anyone form the past.
While Modern Hebrew is spoken by only a few million of us slightly less than 90% of World Jewry understands Classical and most of that 90% speak it as well.
A modern Israeli-Jew would be able to fully understand an ancient Jew because in Israel, even secular Jewish students are compelled to take classes on Classical as well as the Bible as history. It is SOME of the Jews in the Disporah who might not be conversant with an ancient Jew but even then the vast majority would still have tha bility to communicate easily with that person.
Interestingly, Classical Arabic is VERY different from Modern Arabic and Clasical is extremely difficult for Modern speakers to comprehend.
"Bantu." The Bantu are not a single People at all. Bantu is a language group. While theoretically where WAS once a single proto group we have no proof of it whatsoever. We do know that when the Bantu spread it was with many disparate groups that belonged to the language group.
"Many so called "Bush Peoples" were assimilated by attrition, etc. when Bantus encroached into their territories.": The way of the world. Even with the most traditional of "Bush People" you see metal knifes and implements, modern textiles, and so on. They have existed in symbiotic relationships with Bantus since the intial encroachment. Bantu saw/see them as inferior and sadly this sentiment has spread to some "Bush People" so that those who attend govt. schools or exist in govt. settlements as in parts of Botswana try and distance themselves from their customs.
"DASH questions that if Jews had not arrived in Europe would the signnificant achievments in many fields by Jews would have even occurred.": Well, that is a good question although it could be construed as bait since one could argue, if they agree with the negative premise there, that the achievements were due to European influences and not on Jewish outlooks and values,etc.
Well, I would offer that outside of the Khalifa of Andalus (Islamic Iberia) and very brief periods in what is now Iraq, Muslims have tried to supress anything but religious study. In the two afore mentioned exceptions one sees incredible secular achievment by both Jew and Arab. Europe on the other hand leaned towards liberalism after the Rennaisance and this climate allowed for Jews to delve into non-religious spheres.
So, yes, being in Europe DID lead to these achievements but not because it was Europe per se but that Europe grew more liberal. Had the Arab World shown a similar tack it would have certainly happend there as well.
Remember, we were in Europe before most European Cultures had een developed. When the first Jews moved east out of Latin Europe after the Middle Ages they found very ancient Jewish Communities on the Rhine and elsewhere. When Rome marched they had camp followers that soemtimes equalled twice the number of soldiers. Many of these followers were traders and slave merchants. Many of that demographic were Jews. Germania was a great theater of war for Rome and so only ignorant people would imagine that Jews did not exist in central and eastern Europe prior to the Renaissance.