Cossomby,
Go back and read the posts again, heck you quote me directly and you still don't bother to proof read your own posts so that's two levels of intellectual QA failed.
Where did Jesse Owens and Usain Bolt grow up? I wasn't Africa was it? How many top sprinters has Africa produced over the span of the lives of those two men? None.
I didn't call you any demeaning names, you asked a question, I replied.
Blast furnaces?
Here again we see the lies of the Anti Whites, they find a gap in the European historical record and fill it in with a lie.
British Archaeologists have found bronze and tin mines dating to 2300 BC, they have the metal artifacts, they can identify different types of ancient bronze alloy and they have found slag, small assaying furnaces and smithing tools, they have not however discovered an intact, larger scale furnace. Now to a sensible person it's obvious that metalworking developed at the same pace all over the world, to the anti White the absence of a single piece of evidence is proof of Occidental inferiority and Oriental superiority.
Chinese maritime prowess?
Really? Their vessels were crude in comparison to European models across the ages and they never mastered the art of oceanic navigation despite their possession of the magnetic compass. The Chinese hugged the coast of Asia and followed it on to Africa while the Europeans could navigate by the stars and dead reckoning and cross the Atlantic ocean. The Junk was developed during the Song dynasty while the Viking longship had existed for five hundred years prior to that era.
Yeah, of course Brunel and Bentham had developed the idea of watertight hull compartments on their own and what's more came up with a better design than the Chinese but because one of them had travelled to China prior to the widespread adoption of his designs the whole development process must be attributed to the Chinese.
You guys don't know how crazy your posts look to an outsider.

Jay's orginal comment: "Have you ever wondered why Jesse Owens or Usain Bolt turned out to be such physically impressive individuals. Hint: It's got something to do with inbreeding within a small gene pool, not hybridisation and outbreeding".

No specification here that they were sprinters.

Jay's latter comment: "Where did Jesse Owens and Usain Bolt grow up? I wasn't Africa was it? How many top sprinters has Africa produced over the span of the lives of those two men? None." Now they're sprinters, presumably because the fact that the top distance runners are Kenyans doesn't fit the argument. (For the Kenyans it seems to be down to adaptation to high altitudes and hard work).

Jesse Owens grandparents were slaves (1830s) - so he is 3rd generation in America. The available on-line information including his biography doesn't say where in Africa his four slave grandparents came from, but it's unlikely to be the same village. Therefore he parallels the example I gave earlier of British migrant exogamy in Australia. So he isn't the result of inbreeding in a small population but outbreeding in America between Africans from different places who would have been unlikely to meet in Africa.

PS I deliberately left the typos in to see if anyone would bite. I may have misread Jay's early post, though on rereading it seems a bit ambiguous.

I'll spell it out for you cossomby so you don't have to use the Anti Racist tactic of reading between the lines.
Jamaica, a former slave colony consistently produces superior Black athletes.
The USA a former slave colony consistently produces superior Black athletes.
Kenya's record is patchy, at different times it's distance runners have been outstripped by Arabs and Whites.

Folks, we see once again the way the Anti Racist looks at a page of text.
The objective reader reads the words and understands their meaning, the anti Racist looks at the spaces between the words and uses their imagination to come up with a story about the page of text.

Cossomby "my scientific prediction about posting behaviour"

What "scientific" prediction?

There's no mention on Wiki that outbreeding depression is a "controversial" theory.
Cite your reference for this claim.

Strange how you accept the "theory" of inbreeding depression so readily.

Who's cherry-picking?
Whenever you're told about something that undermines your utopian optimism, you claim it's "invalid", "controversial", "only an opinion", "subjective", "not relevant to humans" or some other flippant dismissal.

Is the Human Development Index a controversial theory?
Is GDP-per-capita a controversial theory?
Is the grouping of languages into families and branches (thus showing the relationships, or lack thereof, of the inventors of those languages) a controversial theory?

You know what's a controversial theory?: Pancultural utopianism.

It is solely a matter of subjective *preference* with no scientific/objective basis whatsoever.

Because we are a "species" in no way makes a shared social/economic environment compulsory.
We haven't lived as a unitary species since prehistoric times.

We live in "cultures", as "peoples", in "homelands".
Not as a "species".

If there were only a handful of cultures/peoples and they were all incredibly similar and related, there'd be little justification for separation.
But that's not the case.

There are *thousands* of cultures/peoples in dozens of unrelated "families".
Playing mix-and-match with them is superficial, dangerous and disrespectful.

Just read some of the posts here ...... Wikipedia and Google search have a *LOT* to answer for.

Watched the 'History Channel' a program on 'Auschwitz Concentration Camp' and I'm not accusing anyone on this forum of being a Nazi. The program was a reminder to me why I could never be a supporter of all this 'racial theory'. For it was people who feel in with a madman and his 'racial theory' that lead to the destruction of millions of people, becauses of hatred of some, by others. As far as I'm concerned I'll never be worried about the color of a persons skin, or where they come from, or who their ancestors were, I simply take people as they come, warts and all!
One thing that no amount of theorising will change, for better, for worse, we are all on this Earth together, we all laugh, we all cry, sometimes happy, sometimes sad, we all can love, we all can hate, we all human beings, if we are nothing else!