Our most recent common ancester

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Our most recent common ancester

Russell Standish
Has anyone here come across the work of Douglas Rohde modelling human
populations? It was featured in Slashdot today, but they're a bit
behind the times, as the work was actually published as a letter to Nature back
in 2004:

Douglas L. T. Rohde1, Steve Olson2 and Joseph T. Chang3 "Modelling the
recent common ancestry of all living humans" Nature 431, 562-566 (30 September 2004)

Douglas's homepage has a draft MS outlining the work - see it here:
http://tedlab.mit.edu/~dr/

Anyway, the point I want to raise is this looks like an agent-based
model with up to 55 million agents! That's an order of magnitude
bigger than anything I've attempted, so I'm impressed!

Cheers

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Our most recent common ancester

Jochen Fromm-3
 
Quite impressive. I wonder if a simulation with 55 million
agents is qualitative different from a simulation with
only 5000 agents ? If I remember it correctly, then during
allopatric speciation and other forms of speciation
the population for the new species is often very small
(http://en.wikipedia.org/wiki/Allopatric_speciation),
somewhere at the margin. Wouldn't it be more interesting to
consider the evolution of 5000 agents over 55 million years
than the evolution of 55 million agents over 5000 years ?
At least for genetic evolution, not for "memetic" evolution.

-J.

-----Original Message-----
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Subject: [FRIAM] Our most recent common ancester

Anyway, the point I want to raise is this looks like an agent-based
model with up to 55 million agents! That's an order of magnitude
bigger than anything I've attempted, so I'm impressed!