The link asks nasty questions, so I did not follow it.
I was taught in grade school that agriculture was invented twice, once
in the Old World, and again (later) in the New.
We need to remember that farming is HARD WORK. If you can live and
prosper without being a slave to the soil, so much the better. And
even better, we need to remember that sometimes there are better modes
than agriculture for supplying a large population -- e.g., Atlantic
salmon fishing (for a week or three a year, a gazillion salmon lept
into your hands, and it behooved you to invent ways to preserve this
wonderful source of protein). So probably Ertebolle, tho' I've not
read anything that says this.
And let's say it again. Farming is HARD WORK. Gardening is easier. You
make a clearing in the North European forest and let Nature take her
course: deer etc are attracted (and if you leave some salt, the deer
are really attracted). In the meantime you plant some easy crops.
It's hard to believe that the frozen north of Europe was a paradise,
but way back when, particularly the period from 5500 to 3200 BCE (when
this part of Earth was a warm as it ever has been since the last ice
age), but this is the reality; it's understood the population of this
part of Europe was low. I think they all pigged-out on salmon
year-round.
Farmers were from the south, Cavalli-Sforza-wise, and they left about
ten percent of their genes in the European gene-stock. The farmers
from the south were not that important, genetic-wise. And probably,
linguistic-wise.
Farmers are into inheritance of land. Hunter-gatherers (lox-eaters)
are into social occasions to gather the bounty of Nature.
Archaeologists are saying that Northern European farmers seem to be
little (but more populous) enclaves surrounded by 'more primative'
hunter-gatherers. These little enclaves became isolated linguistic
islands, while the much more wide-ranging hunter-gatherers spoke a
lingua franca. Thus: the farmers learned proto-Indo-European, and left
only a slight substratum.
--- In cybalist@..., vishalagarwal@... wrote:
> ARCHAEOLOGY: Spreading the Word, Scattering the Seeds (p. 988)
>
----------------------------------------------------------------------
> -----
> Ben Shouse
>
> According to the "farming-language dispersal hypothesis," throngs of
> farmers, armed with seeds, genes, and language, swept across the
land
> beginning 100 centuries ago, pushing aside indigenous hunter-
> gatherers. But
> many scholars were suspicious of the grand aspirations of the
farming-
> language hypothesis and of its archaeologist proponents, who they
say
> tend
> to ignore unfavorable linguistic data. Now at a recent conference
> here, new
> studies presented from India and Southeast Asia further threatened
the
> hypothesis, weakening the case for cereal crops as engines of
> linguistic
> dispersal.
>
> Full story at
http://www.sciencemag.org/cgi/content/full/294/5544/988