not really... in the same way your relatives did not die because you showed up! it's really a matter of both time and tenecity. for example there was an event some 70k years the so-called Toba catastrophe! that cause climate change in Africa that caused lots of damage and almost finished our ancestors... A similar (but much smaller episode happened in 1815 and caused the year without the summer (1816)) cause havoc in recent history! If you think about it... these divisions were not deliberate but happened over a great period of time! if they approximate a species showed up between 100-200k years ago that 100k years that is being loosely approximated is a time period you cannot comprehend. it's 10 times all of human written history. it's 50 times time period from Christ's birth to now... a whooping 50 times! it's 2000 times the independence of Kenya! so what happens when they approximate (via carbon and other radioactive dating methods and of course DNA) a period of 3.2 million years for Lucy (the ethiopian)? that is the indepence of Kenya 64,000 times back to back! if Guka is a modest 50 years old....and if he could only sire at age 50... that means that 64,000 gukas lived and died before now... think of all those permutations. what happened to his relatives? since each guka was not born at the same time? if the recent mzungu white skin is approximated to be less than 8k years old... and their blue eyes some 10k years ago and combination of these blue eyes and white skins have populated and occupied the north of this planet kabisa!! Back to my point... if 64,000 back to back produced as one of the leaves of this genealogical tree...the one Guka we have... what about this brothers? the brothers and sisters of his father and mother?... project backwards (with genetic lines crossing over and over)...a whooping 64k times - do you expect to find a grumpy Guka? you end up with a different creature!!
The problem is that modern humans achieved so much over a relatively short period of time and cannot conceive a period before this relatively short period of time. But the scientific method is great... it accepts evidence from everyone. if you can prove creation is right and evolution is wrong... get evidence, write a paper, get it peer reviewed and then go pick your nobel prize!

Thats true. Its a calculated guess. Most conflicts among our ancestors were due to resources.

This one may have happened as that area started to become dryer resulting in resources becoming scarce.

This is a scientific discussion my friend. You've disqualified yourself by bringing religious views into the discussion. You cannot be taken seriously if people are discussing a scientific topic and you bring up the story of Abel and Cain.

Secondly Lake Turkana is located in a semi-desert/desert area (Chalbi). Scientists can easily determine when deserts are formed.

I would suggest you read scientific journals rather than the story of Abel and Cain.

Here is a brief history of Lake Turkana region

According to this article, there was a climatic change that happened approx 6500 years ago that transformed the region from lush fertile region to desert

This article confirms the same

The general consensus is that the area became desert about 6500 years ago. So your notion that it was not dry 200 years ago is bogus.

Also common sense suggest that if the region was not dry in 1900 as you claim, then it would have been settled more densely. If resources were abundant in 1900 then why has that region always been very sparsely populated?

@Alba What you have stated is correct and the late Prof Wangari used to emphasize that most conflicts were over resources.
My point was that resources might not have been the issue 10000 years ago. All the examples you have given are fairly recent.

I once read about the topic of "how to trap a monkey". the trap is relatively simple! the same question was posed by Shaka Zulu... the discourse goes something like this


I tend to disagree a bit at the end with the distillation of the monkey's behavior to be one driven by greed but rather one driven by familiarity. The monkey is trapped not by anything physical but by an idea, unable to see that a principle that served him well – “when you see food, hold on tight!” – has become lethal at this point in time. There is a saying that "the difficulty, lies not in (accepting) the new ideas, but in escaping from the old ones". To save his life all the monkey has to do is release the food/shiny thing it has tightly held - but it can't!! The effect is called the 'Einstellung effect', When doctors make errors in their practice, it has been demonstrated that's it’s likely to be because they jump to conclusions based on past patients, not because they lack medical knowledge ... I tend to think that sometime belief is the notion... the idea... to search through the scriptures to get answers to life and questions - that has served us well in our life so far becomes the trap when we are faced with scientific questions!! I remember a friend who first experienced an earth quake in 2007-2008 (remember the Ol Doinyo Lengai episodes?), searching through scripture for answers on the cause and meanings of earth quakes. I am sure the Kavonokya sect's hand has been caught in the gourd! If aliens suddenly land here... what will your reaction be??

On a different note: Who said the current inhabitants of the Turkana basin were there 200 years ago? 1000 years ago? 5000 years ago? 10000 years ago? people did not start migrating recently - people have been going round since they stepped on the planet! We know the current inhabitants (the sub group of the eastern nilotes known as the Turkana) migrated southwards from South Sudan... and that is recently!